P_i = P_oe^rt

P means population. Po is population start and Pi is population finish.

It basically means how much population growth happens.

e is a constant and is approximately 2.718281828

you can also import math and go math.e

r is the growth rate which has to be converted to a decimal by dividing by 100. So if growth rate is 1.6, it is 0.16 by making it 1.6/100

t is time. So it can be hours in terms of bacteria or years in terms of population growth. This also works for money growth.

Write a function that returns the population growth number.

The arguments you need to pass into the function is

P = starting population

r = population growth rate

t = time

and it should return the finishing population.

If the starting population in the US in 1920 was 100 million, and the growth rate is approximately 1.234 from 1920 to 2014. What does your final population give? It should be around 318 million