Equivalent Expressions

Jeff bought x number of games for $32.50 each. He paid with a $100 bill. Which expressions represents the amount Jeff received back from the cashier?

• 32.5 + x - 100

• 100 - 32.5x

• 32.5x - 100

• 100x + 32.5

Jordan makes 100 dollars each week. He worked for x weeks this summer.

How much money did Jordan make this summer? Write your answer as an expression.

Ben had "x" dollars. Cam has 7 fewer dollars than Ben.  

How much money does Cam have? Write your answer as an expression.

Sarah lives 5 miles farther from school than Grant. If g represents the distance Grant lives from school, which expression represents the total number of miles Sarah and Grant travel to school?

• (g + 5) + g
• (5 × g) + g
• (g + 5) + 5
• (5 × g) × 5

Last week, Allie made $50 washing cars. This week, she made 3 times that amount babysitting. Which equation can be used to determine the amount of money, m, Allie made this week? 

• 3m = 50
• 50m = 3
• m = 3 x 50

Shawn and his friends are going to the State Fair. It costs $12 to park their car. Tickets to get in are $10 per person. If p represents the number of people, which expression represents how much money Shawn and his friends will spend?

• 12p + 10p

• 12p - 10p

• 12p + 10

• 12 + 10p

Which expression is equivalent to 3x + 5 + 7x + 2?

• 10x + 7
• 17x
• 17
• 15x + 2

Which expression is equivalent to 4(x + 6)?

• 4x + 6
• 4x + 24
• x + 24
• 10x + 24

Which expression is equivalent to 6(2x - 3)?

• 12x - 3
• 8x -9
• 8x - 18
• 12x - 18

Which expression is equivalent to 6(3y - 2y + 7)?

• 18y + 7
• 21y - 14y + 7
• 18y + 42
• 6y + 42