Use the Given Growth Rate to Find the Approximate Doubling $0.4 \%$

Use the given growth rate to find the approximate doubling time and to predict the population in 50 years of a growingsuburban town (based on a current population of 100,000) .
-Use the average growth rate between 1850 and 1950 , which was about $0.4 \%$ .

A) 177 years; population in 50 years $= 126,827$
B) 170 years; population in 50 years $= 112,617$
C) 185 years; population in 50 years $= 117,167$
D) 175 years; population in 50 years $= 121,901$