melaniajones06 melaniajones06 04-05-2021 Mathematics contestada 9. Which of the following demonstrates the Associative Property? A. 2(3 - a) = 2.3+2.a B. 4(a + b) = 4ab C. -2(a-3) = -2a +6 D. (a + c)+ a = a +(c + a)
