A theatre can seat 150 people. If all the seats are sold, the price of a ticket to a show is $50. For every seat not sold, the price of a ticket goes up by $1.50 dollar. Let x represent the number of seats not sold a. Find an equation that describes the price of a ticket. b. Find an equation that describes the Revenue from a show. BONUS: How many seats should not be sold in order to maximize the Revenue?