Math Review

Solve the following inequality:

x + 2 > 12

• subtract 2 from both sides and your answer is

  x = 10

• subtract 2 from both sides and your answer is

  x > 10

• subtract 2 from both sides and your answer is

  x < 10

During 7.5 months of hibernation, a black bear lost 64.5 pounds. On average, what was the bear’s weight change per month?

• -8.6

• -12.8

• -10.2

• -9.4

Explain the Quotient of Powers Law: When dividing two powers that have the same base, ....

• Add the exponent and add the base

• Add the exponent and keep the same base

• Subtract the exponent and keep the same base

• Subtract the exponent and subtract the base

At the nearest wholesale store, 3 bags of cereal cost $21.75. Which equation represents the proportional relationship?

• y = 3x

• y = 21.75x

• y = 65.75x

• y = 7.25x

At a carnival game, a number cube labeled 1–6 is rolled. If you roll a 5, you win a prize. The game is played 300 times and there are 36 winners. As a percent, what is the experimental probability of winning for this game?

• 8.3

• 12

• 8

• 10

Use the formula A = bh to find the area, in square meters, of the parallelogram at the left.

• 96 square meters

• 69 square meters

• 20 square meters

• 4 square meters

Sylvie needs $110 for a concert ticket. She already has $16 and can earn the rest by working 10 hours at her job. If h represents her hourly earnings, which equation can be solved to find Sylvie’s hourly earning

• 110 - 16 = 10h

• 110 + 16 = 10h

• 110 + 16 = 10h

• 110 = 16 + 10h

62 more than a number x is less than 233. Which inequality represents the description?

• x + 62 > 233

• x + 62 < 233

• x - 62 > 233

• x - 62 < 233

Janie ordered boxed lunches for the student advisory committee. Each lunch costs $4.25. The total cost of the lunches is $53.75, including a $7 delivery fee. Which equation will help you find x, the number of boxed lunches Janie ordered?

• 4.25x = 60.75

• 4.25 + 7x = 53.75

• 4.25x + 7 = 53.75

• 4.25(x + 7) = 53.75

Roberto has $200 in spending money. He wants to buy some video games that cost $25.50 each. Please select the correct amount of video games he can purchase.

• Roberto can buy at least 8 video games.

• Roberto can buy up to 8 video games.

• Roberto can buy at least 7 video games.

• Roberto can buy up to 7 video games.