Question

Simplify 13 + 4(9 - 7).

A. 34

B. 21

C. 42

D. 19

Answer 1

9-7=2
13+4=17
17*2=34
Answer=A

Answer 2

.B. 21

Explanation:

13+4(9-7) <----- Multiply 9 and -7 by 4 (Distribute Property)

13+36-28 <----- Combine 36 and -28

13+8 <------Combine 13 and 8

21