Image is question help me asap

Circumference  =  2 * pi * radius

So we have

8.5 pi  =  2 * pi * r      divide both sides by 2 pi

8.5/2  =  r  =  4.25 in

Volume_cone  =  (1/3) pi * (radius)^2 * height     =

(1/3) * pi * (4.25)^2 * 15  =

5 * (4.25)^2 * pi  = 

90.31 pi   in^3