I {hjestion 1? v The total cost, C, (in thousands of dollars) to make reading glasses is a function of the number of pairs of glasses made u (in thousands) and is given by C(u) = - 0.02 . u2 + 2.42 . u + 10.55. A. Find the marginal cost at the production level of 9 thousand and choose the correct units Select an answer * (nearest 0.01) B. Which one is the best business interpretation of the marginal cost above Select an answer C. What is the average cost at the same production level? (nearest 0.01) D. At this production level if another pair of glasses are made the average cost will Select an answer v Question Help: ) Message instructor D Post to forum. Question 19 Water is leaking out of an inverted conical tank at a rate of 8500 cubic centimeters per min at the same time that water is being pumped into the tank at a constant rate. The tank has height 9 meters and the diameter at the top is 5 meters. If the water level is rising at a rate of 15 centimeters per minute when the height of the water is 2 meters, find the rate at which water is being pumped into the tank in cubic centimeters per minute. cm 3 min Question Help: @Video Message instructor D Post to forum