The average price of a ticket to a baseball game can be approximated by p(x) =0.03x + 0.51x + 7.21, where x is the number of years after 1991 (that is, x = 0 in 1991) and p(x) is in dollars. a) Use the model to estimate the price of a ticket in 2000. The price is $ b) Find the instantaneous rate of change in the price of a ticket in 2000 The instantaneous rate of change in the price of a ticket in 2000 is dollars per year. c.) Use your answers to parts a and b to predict the price in 2001. The price in 2001 is $