The comunitive property works for which operations check all that apply

Step-by-step explanation:

A. ÷

We need to check if  

Take a = 4 and b = 2

So,  

Therefore, commutative property does not work for division.

B. -

Take a = 7 and b = 10

So,  

Therefore, commutative property does not work for subtraction

C. +

Take a = 8 and b = 9

So,  

Therefore, commutative property works for addition.

D. ×

Take  

So,  

Therefore,  commutative property works for multiplication.

So, commutative property works for addition and multiplication.

This is incomplete, so I can not answer this right now.

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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