Evaluating Expressions with One Variable

Solve the equation 8+5b when b=10

• 58

• 42

• 518

• 31

Solve the equation 5+t² when t = 2

• 12

• 3

• 9

• 42

Evaluate when a = 15:
2(a - 5) + 2

• 22

• 27

• 14

• 7

w + 3

if w=2

• 11

• 9

• 7

• None of the above

• 7

• 5

• 50

• 20

A rectangle has a dimension that is represented by (2c + 1) and another dimension that is (3 + c). If c = 3, then that is the actual area of this rectangle?

• 13 square units

• 42 square units

• 36 square units

• 12 square units

The length of a rectangle is represented by (5x - 3) and the width is (x + 3). If x = 2, then which of the following values is the actual perimeter of this rectangle?

• 18

• 14

• 24

• 20

If n = 4, what is the value of this expression?

            

(5 + n)² ÷ 3

• 6

• 7

• 21

• 27

• 15

• 25

• 75

• 5

Evaluate the expression 16 + 36 ÷ b. For b = 4

• 56

• 25

• 24

• 13