SOMEONE HURRY THIS IS EASY BUT I CANT FIGURE IT OUT. I WILL MARK U AS BRAYNLIST

a

step-by-step explanation:

plz mark brainliest i took the test

step by step solution :

step   1   :

1.1     4 = 22

(4)3 = (22)3 = 26

equation at the end of step   1   :

  ((23) • 26)2

step   2   :

equation at the end of step   2   :

  (23 • 26)2

step   3   :

final result :

  218

ya

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64