I am stuck on (b), (c), and (d) can someone help me.

(b) (c) (d)  on the first part...these are all cones....

Volume of cone  = (1/3)( pi) (radius of base)^2 * height of cone

Here's  (b)......see if you can do  (c)  and (d)...if not...let me know

Volume  = (1/3) (pi) (11^2) ( 16)   ≈  2027.37 in^3

For  (b)  (c) (d)  on the second part

All of these are cylinders

Volume of  cylinder =  pi * (base radius)^2 * (cylinder height)

So

(b)  [ the radius  = 22/ 2  = 11 ]

Volume =   pi * (11^2) ( 9)    = 3421.19 ft^3

See if you can  do (c)  and (d), based on this.....