Question

I'm running low on points can you please help me :)

Which expression is equivalent to 21 + 49?

7(3 + 49)
7(3 + 7)
7(14 + 42)
7(14 + 49)

Answer 1

7(3+7)

Explanation:

You distribute the 7. 7x3= 21 and 7x7=49. Then you get 21+ 49

Answer 2

7(3+7)

Explanation:

21+49=70

3+7=10

7*10=70