Expand the expression.
-7 (6 - 3)
-k - 21
-7k + 21
-7k - 21
k + 21

(B.) -7k+21

Step-by-step explanation:

Your first step should be to solve your original expression.

-7×6=-42

-7x-3=21.

You're finishing numbers are -42 and 21.

-7k can equal to -42 if k is 6.

So we can use -7k

Since -7x-3=21, Then the answer would have to be:

-7k+21.

4 adults and 12 babies

step-by-step explanation:

4 x 7 = 28

12 x 15 = 180

180 + 28 =208

4 x 3 = 12

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right