Question

5c + cd when c 1/5 and d = 15

Answer 1

When we plug it in, 5(1/5)+(1/5)15. We can use the commutative property and we get 20(1/5) which is 4.

Answer 2

5c + cd
=5(1/5) + (1/5)(15)
= 1 + 3
= 4