# 6.3 Solve sales tax, commission, and discount applications  (Page 5/15)

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

1. 600%
2. $1,800 The Auto Resale Store bought Pablo's Toyota for $\text{8,500}.$ They marked the price up $\text{35%}.$ Find the amount of mark-up and the list price. 1.$2,975
2. $11,475 ## Access additional online resources ## 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 $\text{84}.$ The sales tax rate is $\text{5%}$ of the purchase price. 1.$4.20
2. 88.20

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

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

1. $9.68 2.$138.68

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

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

1. $17.13 2.$267.13

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

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

1. $61.45 2.$1,260.45

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

In the following exercises, find the sales tax rate.

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

6.5%

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

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

6.85%

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

Solve Commission Applications

In the following exercises, find the commission.

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

$20.25 Michele rented a booth at a craft fair, which charged her $\text{8%}$ commission on her sales. One day her total sales were $\text{193}.$ How much was the commission? Farrah works in a jewelry store and receives $\text{12%}$ commission when she makes a sale. How much commission will she receive for selling a $\text{8,125}$ ring?$975

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

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

\$859.25

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

In the following exercises, find the rate of commission.

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

3%

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