Please help me with my economics homework

Q2: In Monopolistic Market, the following gure illustrates the situation facing the publisher of the only newspaper containing local news in an isolated community. a E 8 6 Prim and our [com par newspaper] 8 O 100 200 300 IN 500 Quunlily lllmpupon p. day} The publisher's marginal cost for the new plant is constant at 20 cents per copy printed. a. What quantity of newspapers will maximize the publisher's profit? b. What price will the publisher charge for a daily newspaper? c. What is the publisher's daily total revenue? d. At the price charged for a newspaper, is the demand for newspapers elastic or inelastic? Why