If i understood the question right, you're trying to find the value when h = -2. If that's true so here is how it's done:

Answer:
31.25×
Step-by-step explanation:
suppose that the value of x was 3 . that would mean that they bought 3 calculators .
if one calculator is $31.25 then 3 would be $31.25× 3
the same rule would apply for x
Answer:
the answer is on photomath
Answer:A
Step-by-step explanation:
just took it
Answer:
11403.98133
Step-by-step explanation:
V = πr^2h = π·11^2·30 ≈ 11403.98133