Which expression is an example of the associative property?
A. (x + y) + z = x + (y + z)
B. x+y+z=z+ y + x
C. x(y + 2) = xy + xz
D. x • 1 = x

A.

Step-by-step explanation:

This property states that when three or more  are added (or multiplied), the sum (or the ) is the same regardless of the grouping of the  (or the multiplicands).

area = length x width

length = 2 x width

32 = 2 x width x width

32 = 2 x width^2

36 = width ^2  

width = 6

length = 12

area is 32

perimeter = 2 x 12 + 2 x 6 = 24 + 12 = 36

step-by-step explanation:

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