Answer:
15c
Step-by-step explanation:
3c x 5c =
3 x 5= 15
15c
the easiest way to do this problem is take away the c's in the expression and add them to your answer at the end which you would just be multiplying 5 x3 which = 15 then you would put the c next to the 15 so the answer would be 15c
