Question

A population, currently 400, is growing at 3.5% per year. Write a formula for the population, P, as a function of time, t, years in the future. If the population continues this trend, what will it be in ten years? If the population continues this trend, how many full years does it take to at least double?

Answer 1

i must go now but you can use the 'compound interest' formula

P = 400( 1 + 0.035)^t

Answer 2

Oh nevermind I figured it out!

Answer 3

And then 564, and 21

Answer 4

Are the other two answers

Answer 5

Thanks @welshfella