15. Circle all of the expressions equivalent to 9x - y. A (3x2 - y)
B. (3x)2-0)
C 9(x2)-6)
D. (932) 2-6)
E. (3x2 + y)(3x2-y)

I believe a is One of them

96 39 cause 135 -96=39 im smart (i used a calculater)

answer: -10

step-by-step explanation:

s(t) = 1 - 10t

s(x) = 1 - 10x

s(x + h) = 1 - 10(x + h)

            = 1 - 10x - 10h

s(x + h) - s(x) = 1 - 10x - 10h - (1 - 10x)

                      = 1 - 10x - 10h - 1 + 10x

                      = -10h

= -10