Questions 15, 16 and 17

15. DETAILS HARMATHAP11 13.4.023. ASK YOUR TEAC In this problem, p is in dollars and x is the number of units. If the demand function for a product is p = 9/(x + 1) and the supply function is p = 1 + 0.2x, find the consumer's surplus under pure competition. (Round your answer to the nearest cent.) $16. DETAILS HARMATHAP11 13.4.027. ASK YOUR TEACHER In this problem, p is in dollars and x is the number of units. Suppose that the supply function for a good is p = 4x + 34x + 8. If the equilibrium price is $92 per unit, what is the producer's surplus there? (Round your answer to the nearest cent.) $17. DETAILS HARMATHAP11 13.6.001. Use integration by parts to evaluate the integral. (Use C for the constant of integration.) xe 2 dx