Applying Operations on Rational Numbers to Solve Mathematical and Real-World Problems

• 40

• 17

• 24

• 18

3(9-6+8)+9

• 22

• 36

• 40

• 42

The initial balance of a savings account was $275. After which transactions will the balance of the savings account be the same as the initial balance?

• a withdrawal of $232 followed by a deposit of $132

• a deposit of $278 followed by a withdrawal of $278

• a withdrawal of $115 followed by a deposit of $312

• a deposit of $205 followed by a withdrawal of $317

At the gym, Tika spends twice as much time doing aerobics than weight training. She stretches for one fifth of the time she spends on weight training. Let w be the amount of time Tika spends on weight training. Which expression represents her total workout?

Kyle received a notice from his bank that his account was overdrawn by $14. He made a deposit of $50. How much money is now in Kyle's account?

• $36

• $-36

• $64

• -$64

(8 - 6)² x 7

• 11

• 28

• 14

• 42

Ben spends 4 and 1/4 hours each week practicing piano. Jake practices 1/2 as much time as Ben. Which equation represents the amount of time, t, Jake practices on the piano?

• t = 9/4 + 1/2

• t = 9/4 x 1/2

• t = 17/4 + 1/2

• t = 17/4 x 1/2

Carlos uses a cleaner after working in his garage. The bottle contains 64.2 mL of cleaner. He used 5.8 mL of the cleaner on Monday. On Tuesday, he used half of the remaining cleaner on a chemical spill. On Wednesday, he used 3.9 mL of the cleaner in the bottle. How many mL of cleaner did Carlos have left on Thursday?

• 58.4

• 29.2

• 25.3

• 12.15

One weekend, Latoya and Tyler mowed lawns to earn spending money. Together, they earned $13.50 an hour for 8 hours of work. Each received half the total earnings. If Latoya then spent $18 on a video game, how much money did she have left?

If b = 4 and c = 5, what is the value of bc + b - c?

• 20

• 16

• 18

• 19