Question

Need help with #10 :’)

the # is “Which of the following expressions is equivalent to 42 + 63?

A- 3(15+21)

B- 6(7+9)

C- 7(6+9)

D- 14(3+3)

8

Answer 1

the answer is c

Explanation:

first add : 42+63=105

so you need to solve the expressions until you find the one that equal the same amount.

start with the problem in the parenthesis then multiply.

you will find that C equals 105

6+9=15

15×7=105