Anumber of stores offer film developing as a service to their customers. suppose that each store offering this service has a cost function c(q) = 50 + 0.5q + 0.08q2 and a marginal cost mc = 0.5 + .16q. if the going rate for developing a roll of film is $8.50, is the industry in long-run equilibrium? if not, find the price associated with long-run equilibrium.  suppose now that a new technology is developed that will reduce the cost of film developing by 25%. assuming that the industry is in long-run equilibrium, how much would any one store be willing to pay to purchase this technology?

John and daphne are saving for their daughter ellen's college education. ellen just turned 10 at (t = 0), and she will be entering college 8 years from now (at t = 8). college tuition and expenses at state u. are currently $14,500 a year, but they are expected to increase at a rate of 3.5% a year. ellen should graduate in 4 years--if she takes longer or wants to go to graduate school, she will be on her own. tuition and other costs will be due at the beginning of each school year (at t = 8, 9, 10, and 11).so far, john and daphne have accumulated $15,000 in their college savings account (at t = 0). their long-run financial plan is to add an additional $5,000 in each of the next 4 years (at t = 1, 2, 3, and 4). then they plan to make 3 equal annual contributions in each of the following years, t = 5, 6, and 7. they expect their investment account to earn 9%. how large must the annual payments at t = 5, 6, and 7 be to cover ellen's anticipated college costs? a. $1,965.21b. $2,068.64c. $2,177.51d. $2,292.12e. $2,412.76