Answer:
838.227263
Step-by-step explanation:
(2)(3.141593)(8.325)(7.7)+(2)(3.141593)(8.325^2)
=(6.283185)(8.325)(7.7)+(2)(3.141593)(8.325^2)
=(52.307518)(7.7)+(2)(3.141593)(8.325^2)
=402.767886+(2)(3.141593)(8.325^2)
=402.767886+6.283185(8.325^2)
=402.767886+(6.283185)(69.305625)
=402.767886+435.460085
=838.227971
