Answer: the population after 9 years is 17175
Step-by-step explanation:
We would apply the formula for exponential decay which is expressed as
A = P(1 - r)^ t
Where
A represents the population after t years.
t represents the number of years.
P represents the initial population.
r represents rate of growth.
From the information given,
P = 24800
r = 4% = 4/100 = 0.04
t = 9 years
Therefore,
A = 24800(1 - 0.04)^9
A = 24800(0.96)^9
A = 17175