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Tools 1585759900-Unit... x O G 1 5 + 175% 2. A diner is open from 6 a.m. to 6 p.m., and the average number of customers in the diner at any time can be modelled by the function C(h) = -30 cos (Th ) + 34, where h is the number of hours after the 6 a.m. opening time. The average amount of money, in dollars, that each customer in the diner will spend can be modelled by the function D(h) = -3 sin ("h) + 7. a. Write the function that represents the diner's average revenue from the customers. VV b. What is the average revenue from the customers in the diner at 2 p.m.? vVv