Answer:
Step-by-step explanation:
r = 9.1 m
SA =3πr²

The <u>possible rational zeros</u> of <u>polynomial function</u>
could be only among the <u>divisors</u> of the <u>free term</u> of this polynomial function.
The free term is 20 and the divisors of 20 are:

Answer: correct choice is C