Equivalent Expressions

What is the value of the expression below? 3 X 7 + 2³ ÷ (3 + 1)

• 7.25

• 23

• 3,041.75

• 4,055.67

Which expression is equivalent to (3)(3)(3)(3)(3)

• 3⁵

• 5(3¹)

• 5³

• 3¹

• 3² times 3³

Cara solves 10 homework problems every hour.

Let h represent the total number of hours she has been solving homework problems.

Which expression could be used to find the total number of homework problems Cara has solved?

• h times 10

• h divided by 10

• h - 10

• h + 10

What fraction is equivalent to the expression below?

5/2 divided by 3/10

• 3/4

• 4/3

• 3/25

• 25/3

Which expression is equivalent to 4(3x + 7)?

• 40x

• 12x + 7

• 40x + 7

• 12x + 28

Which expression is equivalent to 3 + 6x + 9?

• 18

• 18x

• 6x + 12

• 9x + 9

Which of the following expressions is equivalent to 7 x + 9 y − 6 − 3 y + 4?

• 7x + 4y

• 11xy

• 7x + 6y - 2

• 7x + 4

Which of these expressions is equivalent to 3( 5 x − 2)?

• 9x

• 8x - 2

• 15x - 6

• 15x - 2

Which of these expressions must be equal to a + b ?

• (a)(b)

• b - a

• b + a

• a - b

What is the value of 8( z − 5) + 2 when z = 9?

• 34

• 48

• 65

• 69