Answer:
what one?
Step-by-step explanation:
Answer:
Peter is a-8 in 9 years, (a-8)+ 9+ a+ 9= 76
Answer: C
Step-by-step explanation:

We do not have the radius, but we do have the diameter. A diameter is twice the radius, therefore we can divide the diameter by 2 in order to obtain the radius.

Plug this info into the formula.
