Question

1.Which expression is equivalent to this one?

–7(5 + 10)









A.

(–7) · 5 + (–7) · 10








B.

(–7) · 5 + 10








C.
(–7) + 5 + 10







D.

(–7) · 5 · 10

2.
Which expression is equivalent to this one?

9(x – 23)









A.

9x – 23








B.

9x – 9 · 23








C.

9x · (–23)








D.

9 + x – 23
3.
Which expression is equivalent to this one?

k · 6 + k · s

Answer 1

B, because the answer is equivalent to -7*15, also equivalent to -7(5+10)

Answer 2

thank you