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Jim's music store bought a guitar at wholesale price $1,200 . Jim marked the price up 50% . Find the amount of mark-up and the list price.

  1. 600%
  2. $1,800

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The Auto Resale Store bought Pablo's Toyota for $8,500 . They marked the price up 35% . Find the amount of mark-up and the list price.

  1. $2,975
  2. $11,475

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Key concepts

  • Sales tax applications involve finding a percent of an original price and adding it to the original price to get a total. See [link] .
  • Commission applications involve finding a percent of sales. See [link] .
  • Discount applications involve subtracting a percent of an original price. See [link] .
  • Mark-up applications involve adding a percent of a wholesale price. See [link] .

Practice makes perfect

Solve Sales Tax Applications

In the following exercises, find the sales tax and the total cost.

The cost of a pair of boots was $84 . The sales tax rate is 5% of the purchase price.

  1. $4.20
  2. $$88.20

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The cost of a refrigerator was $1,242 . The sales tax rate is 8% of the purchase price.

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The cost of a microwave oven was $129 . The sales tax rate is 7.5% of the purchase price.

  1. $9.68
  2. $138.68

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The cost of a tablet computer is $350 . The sales tax rate is 8.5% of the purchase price.

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The cost of a file cabinet is $250 . The sales tax rate is 6.85% of the purchase price.

  1. $17.13
  2. $267.13

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The cost of a luggage set $400 . The sales tax rate is 5.75% of the purchase price.

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The cost of a 6 -drawer dresser $1,199 . The sales tax rate is 5.125% of the purchase price.

  1. $61.45
  2. $1,260.45

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The cost of a sofa is $1,350 . The sales tax rate is 4.225% of the purchase price.

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In the following exercises, find the sales tax rate.

Shawna bought a mixer for $300 . The sales tax on the purchase was $19.50 .

6.5%

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Orphia bought a coffee table for $400 . The sales tax on the purchase was $38 .

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Bopha bought a bedroom set for $3,600 . The sales tax on the purchase was $246.60 .

6.85%

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Ruth bought a washer and dryer set for $2,100 . The sales tax on the purchase was $152.25 .

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Solve Commission Applications

In the following exercises, find the commission.

Christopher sold his dinette set for $225 through an online site, which charged him 9% of the selling price as commission. How much was the commission?

$20.25

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Michele rented a booth at a craft fair, which charged her 8% commission on her sales. One day her total sales were $193 . How much was the commission?

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Farrah works in a jewelry store and receives 12% commission when she makes a sale. How much commission will she receive for selling a $8,125 ring?

$975

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Jamal works at a car dealership and receives 9% commission when he sells a car. How much commission will he receive for selling a $32,575 car?

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Hector receives 17.5% commission when he sells an insurance policy. How much commission will he receive for selling a policy for $4,910 ?

$859.25

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Denise receives 10.5% commission when she books a tour at the travel agency. How much commission will she receive for booking a tour with total cost $7,420 ?

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In the following exercises, find the rate of commission.

Dontay is a realtor and earned $11,250 commission on the sale of a $375,000 house. What is his rate of commission?

3%

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Questions & Answers

how does Neisseria cause meningitis
Nyibol Reply
what is microbiologist
Muhammad Reply
what is errata
Muhammad
is the branch of biology that deals with the study of microorganisms.
Ntefuni Reply
What is microbiology
Mercy Reply
studies of microbes
Louisiaste
when we takee the specimen which lumbar,spin,
Ziyad Reply
How bacteria create energy to survive?
Muhamad Reply
Bacteria doesn't produce energy they are dependent upon their substrate in case of lack of nutrients they are able to make spores which helps them to sustain in harsh environments
_Adnan
But not all bacteria make spores, l mean Eukaryotic cells have Mitochondria which acts as powerhouse for them, since bacteria don't have it, what is the substitution for it?
Muhamad
they make spores
Louisiaste
what is sporadic nd endemic, epidemic
Aminu Reply
the significance of food webs for disease transmission
Abreham
food webs brings about an infection as an individual depends on number of diseased foods or carriers dully.
Mark
explain assimilatory nitrate reduction
Esinniobiwa Reply
Assimilatory nitrate reduction is a process that occurs in some microorganisms, such as bacteria and archaea, in which nitrate (NO3-) is reduced to nitrite (NO2-), and then further reduced to ammonia (NH3).
Elkana
This process is called assimilatory nitrate reduction because the nitrogen that is produced is incorporated in the cells of microorganisms where it can be used in the synthesis of amino acids and other nitrogen products
Elkana
Examples of thermophilic organisms
Shu Reply
Give Examples of thermophilic organisms
Shu
advantages of normal Flora to the host
Micheal Reply
Prevent foreign microbes to the host
Abubakar
they provide healthier benefits to their hosts
ayesha
They are friends to host only when Host immune system is strong and become enemies when the host immune system is weakened . very bad relationship!
Mark
what is cell
faisal Reply
cell is the smallest unit of life
Fauziya
cell is the smallest unit of life
Akanni
ok
Innocent
cell is the structural and functional unit of life
Hasan
is the fundamental units of Life
Musa
what are emergency diseases
Micheal Reply
There are nothing like emergency disease but there are some common medical emergency which can occur simultaneously like Bleeding,heart attack,Breathing difficulties,severe pain heart stock.Hope you will get my point .Have a nice day ❣️
_Adnan
define infection ,prevention and control
Innocent
I think infection prevention and control is the avoidance of all things we do that gives out break of infections and promotion of health practices that promote life
Lubega
Heyy Lubega hussein where are u from?
_Adnan
en français
Adama
which site have a normal flora
ESTHER Reply
Many sites of the body have it Skin Nasal cavity Oral cavity Gastro intestinal tract
Safaa
skin
Asiina
skin,Oral,Nasal,GIt
Sadik
How can Commensal can Bacteria change into pathogen?
Sadik
How can Commensal Bacteria change into pathogen?
Sadik
all
Tesfaye
by fussion
Asiina
what are the advantages of normal Flora to the host
Micheal
what are the ways of control and prevention of nosocomial infection in the hospital
Micheal
what is inflammation
Shelly Reply
part of a tissue or an organ being wounded or bruised.
Wilfred
what term is used to name and classify microorganisms?
Micheal Reply
Binomial nomenclature
adeolu
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Practice Key Terms 9

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Source:  OpenStax, Prealgebra. OpenStax CNX. Jul 15, 2016 Download for free at http://legacy.cnx.org/content/col11756/1.9
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