Question

Which of the following expressions are equivalent? I. 10(k + 4) II. 10k + 40 III. 5(2k + 8)

2 points
A) I and II only
B) I and III only
C) II and III only
D) I, II, and III

Answer 1

The answer is c I took the test and got it right

Answer 2

The answer is D.

Explanation:

1. 10(k+4) → 10•k + 4•10 → 10k+40

2. is how it is

3. 5(2k+8) → 5•2k + 5•8 → 10k+40

so it's 1,2,&3