Question

Evaluate the expression 2m - 12 when m = 8.
A. 20
B. 4
C. -4
D. -20

Answer 1

To evaluate the expression 2m - 12 when m = 8, substitute m = 8 into the expression and simplify. The expression evaluates to 4 when m = 8, so the correct answer is B. 4.

Step-by-step explanation:

To evaluate the expression 2m - 12 when m = 8, you need to substitute the value of m into the expression and perform the necessary calculations.

So, substituting m = 8 into 2m - 12, we get: 2(8) - 12 = 16 - 12 = 4.

Therefore, the expression evaluates to 4 when m = 8. Hence, the correct answer is B. 4.