Money Proportions

Mario's grocery bill is $143.74. If 5.3% sales tax is added to his bill, what is the total Mario owes?

• $7.62

• $149.04

• $136.12

• $151.36

Donkey Kong bought a barrel at a 20%-off sale. The barrel was originally priced at $70. How much did Donkey Kong save by buying the barrel on sale?

• $7

• $10

• $14

• $20

Bowser bought mushrooms at the farmer's market. He paid $4.32 for 6 pounds of mushrooms. At that rate, how much should he pay for 5 pounds of mushrooms?

• $2.16

• $3.60

• $5.04

• $5.18

The price of a green shell was $28. the price fell to $0.60. Which is closest to the percent decrease in this stock price?

• 114%

• 98%

• 46%

• 27%

The value of a Piranha Plant increases from $5.45 to $15.48. What is the percent increase?

• 18.4%

• 75%

• 184%

• 212%

Ben earns extra money as a painter. He earns $41 for 4 hours and $71.75 for 7 hours. What is the constant of proportionality of dollars per hour?

• $37

• $64.75

• $10.25

• $18.50

What is the constant of proportionality?

• 1

• 2

• 3

• 4

What is the constant of proportionality for this table?

• 1/9

• 9

• 8

Solve for x 

• x = 16

• x = 28

• x = 1/26

• x = 26

Write an equation for this situation.

• y=9.75x

• y=19x

• y=19.25x

• y=9.5x