Which equation demonstrates the distributive property? a) 81 + 18 = 99 b) 81 x 18 = 18 x 81 c) 81 + 18 = 9(9 + 2) d) (9 + 2)9 = 9(9 + 2)

The correct answer that shows distributive property is C , because D is the very beginning of the equation , then C is distributing but it isn't finished fully but shows what is happening and what the difference is , then B is when you are done distributing all of your equation, and A is the last step.
Hope this helped!

(9+2)9=9(9+2)
81+18=9(9+2)
81+18=81+18
81+18=99

Ithink the answer is b.