Lesson 20 Simple Interest, Sales Tax, Commission, Discounts, Tips

Hazel sells jewelry. She makes 12% commission off her sales. How much commission does Hazel make when she sells $22,540 worth of jewelry?

• 13,780.80

• $450.80

• $2,704.80

• $304.80

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CCSS.7.RP.A.3

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A second-hand store bought a scarf for $14. In order to make a profit, they marked the scarf up 20%. What would the selling price be after this markup?

• $2.66

• $16.80

• $11.34

• $33

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CCSS.7.RP.A.3

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Daniel has dinner at a restaurant and the cost of his meal is $28.00. Because of the service, he wants to leave a 20% tip. What is his total bill including tip?

• $33.60

• $40.00

• $24.60

• $30.50

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You plan to purchase a plane ticket for $299.00 and you are going to use a discount code to receive 15% off.  How much will the ticket cost?

• $149.50
• $254.15
• $343.85
• $44.85

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CCSS.6.RP.A.3C

The rate is given as a percent (%). Before using it in the simple interest formula, you must first convert it to a______.

• fraction

• decimal

• ratio

• dollar amount

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CCSS.7.RP.A.3

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The simple interest formula is I=Prt. The P represents ___________________.

• The Principal-the amount of money

• the percent interest for this year

• the rate

• the time

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CCSS.7.RP.A.3

What does the "I" in the interest formula stand for?

• It

• Simple Interest

• I don't know

• isosceles

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CCSS.7.RP.A.3

Alexton borrowed $4,000 for 5 years at 6% simple interest rate to pay for his band equipment. How much interest is that?

• $800

• $1,000

• $1,200

• $1,500

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CCSS.7.RP.A.3

CCSS.7.RP.A.2

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The simple interest formula is I=Prt. The r represents ___________________.

• The Principal-the amount of money

• the percent interest for this year

• the rate

• the time

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CCSS.7.RP.A.3

CCSS.7.RP.A.2

What is the new price of a $20 item that is 25% off?

• $5.00

• $4.00

• $15.00

• $3.00

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CCSS.7.RP.A.3

CCSS.7.RP.A.2