the question is in the picture shown.

C

Step-by-step explanation:

The volume (V) of a cone is calculated as

V = area of base × height

   = × πr² × height

Here diameter = 22, thus r = 11 and h = 22

V = × π × 11² × 22

   = × π × 121 × 22

   =

   ≈ 2787.64 → C

just do 5.2 + 2 ( 7.2) and 1/3 x 3 (.9) and youv'e got your equation. 0.9( 9/10) + 7.2 ^2 = 16.4 hope i could !

step-by-step explanation: