For a few months, the function f(x)=15(3)^x represented the number of bees in a new hive x months from the time it was started. how did the number of bees change each month?

For this case we have a function of the form:
 y = A (b) ^ x
 Where,
 A: initial amount
 b: growth rate
 x: time (in months)
 We have the following equation:
 f (x) = 15 (3) ^ x
 We observed that:
 b = 3
 Therefore, the number of bees triples each month.
 
 b = 3
 the number of bees triples each month.

If your asking how much altogether for 12 performance the answer will be 98,496.

I’m not sure about that