Evaluating Algebraic Expressions Advanced

Evaluate the expression:

5m + 7 if m = 5

• 12

• 25

• 32

Which of the following expressions contains a variable?

• 7+3

• 144÷12

• 7 + 15n

• 6(5)

Evaluate m² if m = 7.

• 14

• 49

Evaluate 3d if d = 5.

• 3

• 5

• 12

• 15

Evaluate n³ if n = 5.

• 15

• 125

Evaluate 7a - 6 if a = 3.

• 15

• 67

Evaluate y - 17 if y = 28.

• 11

• 17

• 27

• 28

Evaluate 3m if m = 4.

• 3

• 5

• 12

• 15

Evaluate the expression:

2 + m if m = 7

• 5

• 27

• 9

• 72

A variable is a

• number

• letter that represents a number