Need a,b, and c answered.

The population of a certain state (in thousands) from 1991 (t =0) to 2001 (t = 10) is modeled by the polynomial p(t) = - 0.212+ 106t +6315. a. Determine the average growth rate from 1991 to 2001 b. What was the growth rate for this state in 1995 (t = 4) and 2001 (t= 10)? c. Use a graphing utility to graph p' for Osts 10. What does this graph tell you about population growth in this state during the period of time from 1991 to 2001? a. The average growth rate from 1991 to 2001 is thousand people / year (Type an integer or a decimal.)