The price-demand and cost functions for the production of microwaves are given as p= 205 - q/70 and C(q) = 18000 + 20q,where q is the number of microwaves that can be sold at a price of p dollars per unit and C(q) is the total cost (in dollars) of producing q units.(D) Evaluate the marginal revenue function at q=1000.R' (1000)(E) Find the profit function in terms of q.P(q):(F) Evaluate the marginal profit function at q = 1000.P'(1000)