Question

Which expression is equivalent to 39 + 91?

3(7 + 13)
3(13 + 30)
7(3 + 13)
13(3 + 7)

Answer 1

13(3 + 7)

Explanation:

First do 3 + 7 and that is 10.

Then do 10 x 13 and that is 130.

Finally compare 91 + 39 = 130 to 13(3 + 7)

Answer 2

The last one is the answer

Explanation:

39+91=130

13(10)=130

130=130