Answer:
I would say A
Step-by-step explanation:
I'm saying its a because normally the Volume formula would be
V= h/3 (pi) r^2
so if it is doubled it should be
V=2/3 (pi) r^2
Start from 1 and add up buy odds till you reach your 99th sequence.
0 is not in the set, so 0 cannot be a subset.