Answer:
3 years
Explanations:
The given function representing the population of alligators is:
Find the intial population at t = 0
The population will double when:
P(t) = 319 x 2
P(t) = 638
The doubling time is the value of t at which P(t) = 638
The population will double after 3 years.
Therefore, the doubling-time for this population of alligators is 3 years