Need help on this economic question with explanations.

A monopolistic seller of a certain brand of coffee faces the following inverse demand curve: P = 25 Q, Where Q is pounds of coffee sold per week (measured in thousands). The coffee can be produced at a constant marginal cost of $7 per pound. (3 points ac, 5 points d) a. Graph this seller's demand curve and marginal cost curve. Add a labeled marginal revenue curve to your graph. b. What is the co'ee seller's prot-maximizing price and quantity of coffee? Draw appropriate gures on your graph to represent the seller's total revenue and total cost at this point. (Note that marginal cost being constant implies MC = ATC.) c. How much is the coffee seller's prot? (1. Suppose this rm has the opportunity to run a new advertising campaign. The rm's analysts estimate that the campaign would have a short-term impact on consumer demand, making the inverse demand curve equal to P = 27 2Q for four weeks. What is the most that the rm would be willing to pay for the advertising campaign