study of annual population shows the population,B(t)=620(1.32)^t,t represents the number of years since the study began.In terms of the monthly rate of growth,represent the population using a function

Answer 1

Divide the time by 12, since it is in years and you want MONTHLY.

I bet it is option #4

Answer 2

Since the growth is given in years we need to divide .32 by 12 to get the monthly rate

Our exponent will 12t to convert this to monthly as well

so we have B(t)=630(1.0267)^12t