Answer:
(C.
I THINK-
Step-by-step explanation:
Are you sure this question is right? there are no negatives? i’m pretty sure the answer is 72 but if i’m wrong, i’m sorry.
Answer:
Step-by-step explanation:
3(3) = 9
15-3=12
12(9)= 108
7(9)=63
ans : 183
Answer:
Look below
Step-by-step explanation:
Sigma (summation) and Pi (product) notation are used in mathematics to indicate repeated addition or multiplication

Hope this helps