posted by Jessie .
The population of bacteria in one cubic centimeter of the blood of a sick person has been modeled by the function P(t) = 80t(0.86^t) where t is the time, in days, since the person became ill.
I was able to answer all of the questions besides,
Estimate how fast the population is changing 5 days after the onset of the illness. Round your answer to two decimal places. Rate of Change: