Shakespear's Pizza sells 1 comma 3001,300 large Vegi Pizzas per week for $1616 a pizza. When the owner offers a $5 discount, the weekly sales increase to 1 comma 8001,800. (a) Assume a linear relation between the weekly sales A(x) and the discount x. Find A(x). (b) Find the value of x that maximizes the weekly revenue. (c) Answer parts (a) and (b) if the price of one pizza is $88 and all other data are unchanged.

Bakery has bought 250 pounds of muffin dough. they want to make waffles or muffins in half-dozen packs out of it. half a dozen of muffins requires 1 lb of dough and a pack of waffles uses 3/4 lb of dough. it take bakers 6 minutes to make a half-dozen of waffles and 3 minutes to make a half-dozen of muffins. their profit will be $1.50 on each pack of waffles and $2.00 on each pack of muffins. how many of each should they make to maximize profit, if they have just 20 hours to do everything?