The projected population of a certain ethnic​ group(in millions) can be approximated by ​p(t)equals=39.63 left parenthesis 1.026 right parenthesis Superscript t39.63(1.026)t where tequals=0 corresponds to 2000 and 0<t<50

The projected population of a certain ethnic​ group(in millions) can be approximated by ​p(t)equals=39.63 left parenthesis 1.026 right parenthesis Superscript t39.63(1.026)t where tequals=0 corresponds to 2000 and 0 less than or equals t less than or equals 500≤t≤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?