Question

Which statement shows the associative property of addition?

O 21 + 2y = 2y + 21
O 3.(5.2) = (3.5) 2
If m + 3 = 18, then 18 = m + 3.
O (1 + 7) + 13 = 4 + (7 + 13)

Answer 1

the third one

Explanation:

it's the only correct one with only addition