1. Hey, it's your friends at the Precalculus Pizzeria again. Very few people are ordering from us and we're sure it's because of the price, not because we keep giving them problems. Here's what we know: The number of people who will buy a pizza is a linear function of the price. Right now we charge $30 and only sell 1 pizza per day. If we charged $18, then we'd sell 25 pizzas per day! (a) Write a function f (x) for the number of pizzas we'll sell per day if we charge $32 per pizza. (b) Suppose it costs us $5 to make each pizza. Write a function 9(a) for the total prot we'll make each day if we charge $33 per pizza. (Remember that prot is the amount of money we make minus the cost.) (c) How much should we charge to maximize our profit