The Time Required for a Population to Triple Is Given $\approx$

Multiple Choice

The time required for a population to triple is given by , where r represents the growth rate (expressed as a decimal) and T(r) gives the years required. How long would it take a population to triple if the growth rate were 3.9%? Round your answer to the nearest tenth.

A) . $\approx$ 28.2 years
B) . $\approx$ 28.3 years
C) . $\approx$ 28.4 years
D) . $\approx$ 28.5 years