Evaluation Expressions

Find the value of 3x + 2y - 5z when x = -2, y = 3, and z = -1.

• -14

• 8

• 2

• 5

Simplify the expression 4a - 2b + 3a - 5b when a = 2 and b = -3.

• 35

• 13

• -23

• 29

Evaluate the expression 5x^2 - 2x + 1 when x = 1.

• 2

• 4

• 6

• 3

Evaluate 15 - m  for m = 7

• 22

• 8

• 2

• 9

Evaluate 6p - 3  when p = 2

• 5

• 15

• 9

• 12

Which of the following expressions contains the variables x, y, and z?

• 4x + 6y + 10z

• 4x + 6y

• 4x + 10z

• 6y +10z

What are the coefficients in the expression?
4 + 16v

• 4, 16v

• 4

• 16

• +16

2x + 3 + x²; for x = 4

• 17

• 27

• 19

• 25

Which expression is equal to 6⁴?

• 10

• 24

• 4⁶

• 6⋅6⋅6⋅6

Here is an expression: 3⋅2^t.

Evaluate the expression when t is 4.

• 72

• 24

• 48

• 10