Unit 1 Review Warm Up

A game rental service allows customers to rent games for $5 each after paying a monthly membership fee of $7. The total amount spent each month can be represented by the expression 5x+7. What does the variable x represent in this function?

• The total money spent each month

• The number of games rented

• The cost of renting 1 game

• The number of months

Tags

CCSS.HSA-SSE.A.1A

Which expression is equivalent to -3(x+4)² -8 ?

• -3x²-24x-40

• -3x²-24x-56

• -3x²+8x-24

• -3x²+8x-152

Tags

CCSS.6.EE.A.3

When Justin goes to work, he drives at an average speed of 55 miles per hour. It takes about 1 hour and 30 minutes for Justin to arrive at work. His car travels about 30 miles per gallon of gas. If gas costs $3.45 per gallon, how much money does Justin spend to travel to work?

• $1.43

• $9.49

• $6.33

• $0.12

Tags

CCSS.5.MD.A.1

Determine the number of terms and the leading coefficient in the following expression (after being simplified):

3x² + 6 +7x – 4x³ + 8 – 3x²

• 2 terms and leading coefficient 3

• 6 terms and leading coefficient -3

• 3 terms and leading coefficient -4

• 2 terms and leading coefficient 7

A runner ran at a rate of 0.12 mile per minute for 50 minutes on Monday, Wednesday and Friday. On Tuesday and Saturday the runner ran 0.14mile per minute for 60 minutes, and on Sunday the runner ran 0.08 mile per minute for 1 hour 30 minutes. What was the total mileage the runner covered during the week?

• 22 miles

• 144 miles

• 28 miles

• 42 miles

Tags

CCSS.7.EE.B.3

Which of the following is true about the product of two irrational numbers?

• The product will always be irrational.

• The product will always be rational.

• The product will have a rational and an irrational part.

• The product can be rational or irrational, depending on the two irrational numbers.

The lengths of the sides of a triangle are 2m²+7, 7m-4, and 5m²-4m. Which expression represents the perimeter of the triangle?

• 7m²+3m+3

• 7m²+6

• 13m³

• 7m²+11m+11

Tags

CCSS.HSA.APR.A.1

Which expression is equivalent to √32 - √8

• 2√2

• 6√2

• 2√6

• 2√10

Which expression has a value that is a rational number?

• √10 + 16

• 2(√5 + √7)

• √9 + √4

• √3 + 0

Tags

CCSS.7.NS.A.1D

Sandra sells necklaces at a school craft fair. She uses the equation P = 7.5n – (2.25n + 15) to determine her total profit at the fair. Based on this equation, how much does she charge for each necklace?

• $2.25

• $7.50

• $15.00

• $17.25

Tags

CCSS.8.EE.C.7B