Andrew M. answered 12/13/17
Tutor
New to Wyzant
Mathematics - Algebra a Specialty / F.I.T. Grad - B.S. w/Honors
36 + 28
both are divisible by 4
36 = 4(9), 28 = 4(7)
36 + 28 = 4(9) + 4(7) = 4(9+7) = 4(16)