EXPRESSIONS REVIEW

Which expression has the same value as 5(4x + 4)?

• 20x + 20

• 1. 9x + 20

• 1. 40x

• 1. 13x

What is the perimeter of the rectangle shown ?

• 20ab

• 8a +12b

• 16a + 24b

• 2a+2b

Which expression has the same value as 4(3x + 5)?

• 1. 7x + 5

• 1. 11x + 5

• 1. 7x + 9

• 12x + 20

An expression is shown below.

5z + (9 ÷ 3)

What is the coefficient of the variable in this expression?

• 5

• z

• 9

• 3

Which expression is equivalent to 8c + 6 − 3c − 2?

• 5c+8

• 5c+4

• 11c+4

• 11c+8

Which expression is equivalent to 7a − 8 − 12a + 4?

• -9a

• 31a

• -5a-4

• 19a+12

Which expression is equivalent to 9(9m + 3t)?

• 1. 18m + 3t

• 1. 81m + 3t

• 1. 18m + 12t

• 1. 81m + 27t

Find the value of 5xy² if x = 2 and y = 3.

• 523

• 90

• 60

• 30

If a = -2 and b = -3, what is the value of 3a²b?

• 18

• 36

• -18

• -36

Which expression is equivalent to 6w + 5 − 3w + 7?

• 1. 9w + 2

• 1. 3w + 12

• 1. 11w − 4

• 1. 11w + 4