Proportionality Unit Test

Marie purchased a $49.00 gift for a baby shower. She uses a coupon that offers 20% off. How much will Marie spend on the gift after the coupon?

• $49.00

• $15.50

• $39.20

• $39.99

A local flower shop sells a dozen roses for $12.85. Based on this information, which of the following could be true?

• A. $38.55 for 36 roses

• B. $64.25 for five dozen roses

• C. $25.70 for 18 roses

• D. $32.13 for two dozen roses

A box of cereal weighs 14 ounces and costs $2.66. What is the price per ounce of the cereal?

• A. $0.14

• B. $0.19

• C. $0.21

• D. $0.24

Romeo paid $380.75 in car repairs. The sales tax rate is 7.5%. Which of the following is a reasonable estimate for the total Romeo paid to repair his car?

• A. $28.50

• B. $410.00

• C. $352.50

• D. $442.00

Which set of ratios below is NOT equivalent to 3:4?

• A. 6 to 9

• B. 9 to 12

• C. 15 to 20

• D. 18 to 24

Joey is 4 feet 8 inches tall. There are 2.54 centimeters in 1 inch. What is Joey's height in centimeters?

• A. 142.24 centimeters

• B. 152.4 centimeters

• C. 157.48 centimeters

• D. 172.8 centimeters

Airfare from Atlanta, GA to Nashville, TN was decreased from $250 to $180. By what percentage did the cost of the airfare change?

• A. An increase of 28%

• B. An increase of 39%

• C. A decrease of 28%

• D. A decrease of 39%

Ian measures 9 kg of rice. One kilogram is approximately equal to 2.2 pounds. Which measurement represents the number of pounds of rice?

• A. 18 pounds

• B. 19.8 pounds

• C. 21.3 pounds

• D. 22 pounds

Randall would like to purchase a new pair of athletic shoes that are regularly priced at $88.00. The store is running a 20% off sale. There is also a rebate for $20 off, but it does not apply to sale prices. Describe which incentive will result in a better price for the athletic shoes.

• The $20 off is better because you pay less than you would have with the 20% off

• The 20% off is better because 20% off of $88 is about $70

• $20 off is better.

• The 20% off is better than the $20 off because its about $68.00

A college textbook costs $90.00. If the sales tax rate is 6.5%, then how much will the tax be?

• $5.85

• $95.85

• $9.50

• $8.55