The demand curve for the original Iguanawoman comics is given by q=(400-p)^2/100
where q is the number of copies the publisher can sell per week if it sets the price at $p.
(a) Find the price elasticity of demand when the price is set at $40 per copy.
(b) Find the price at which the publisher should sell the books in order to maximize weekly revenue.
(c) What, to the nearest $1, is the maximum weekly revenue the publisher can realize from sales of Iguanawoman comics?