The number, N, of people who attend the amusement park is a function of the price, p, in dollars. N(p)=-(p+5)(p-17), assuming the minimum ticket price is $12. The revenue generated, R, in dollars, is R(p)=N(P) p, where p is the number of tickets sold. The cost, C, of running the amusement park can be modelled by a composite function of N(p), C(p)=75+12N(p). Identify the optimum ticket price for the amusement park and determine the maximum profit per ticket?" Formula for Profit is revenue subtract cost"