An artist is planning to sell signed prints of her latest work. If

30 prints are offered for sale, she can charge $300 each. However, if she makes more than 30 prints, she must lower the price by $5 for each print in excess of the 30. How many prints should the artist make to maximize her revenue?

(A) Let x be the number of prints and p the price per print. The demand equation is p = ______ and the revenue function is R(x) = _______.

(B) The artist should make __________ prints