7.RP.3 Percent Applications: Interest & Commission

An amount of money added to the cost of an item, usually by the government.

•  Tip

•  Commission

• Sales Tax 

•  Markup

An amount of money added to a bill by the customer, rewarding the service provider for excellent service.

• Commission

• Sales Tax

• Tip

• Markup

An amount of money earned by a worker based on their sales.

• Sales Tax

• Commission

• Tip

• Finder's Fee

An amount of money charged by a bank for borrowing money, or an amount earned by storing money or investing.

•  Commission

•  Interest

•  Sales Tax

•  Cost of Living

Mr. Snerd bought $15 worth of snacks at a gas station on the way to a concert in Seattle. A 9% sales tax was added by the cashier. What was the total cost?

• $1.35

• $13.65

• $16.35

• $24.00

Based on the Simple Interest formula (on what page?), match the items below.

• rate (annual interest rate)

• r

• apple

• time (years)

• p

• principal amount

• t

• Interest earned

• I

Put these Major cities in order according to Sales Tax, from lowest to highest tax rate.

• Portland OR

• Miami FL

• Dallas TX

• New York NY

• Seattle WA

Drag and drop to make the correct substitutions to solve #15 on page 118.

Interest Earned​ = ​ (a)   ​ (b)   ​ (c)  

• 500
• 6%
• 10

Choose the correct answer for #26 on page 119.

• $66.00

• $54.86

• $47.70

• $45.00

• $60
• $300
• .05