The projected population of a certain ethnic​ group(in millions) can be approximated by ​p(t)equals 39.87 left parenthesis 1.016 right parenthesis superscript t where tequals 0 corresponds to 2000 and 0 less than or equals t less than or equals 50 .
a. estimate the population of this group for the year 2010.
b. what is the instantaneous rate of change of the population when tequals ​10