The Class of 2010 Wants to Raise Money for a Class

Essay

The Class of 2010 wants to raise money for a class trip by selling hot pretzels in school. The initial cost is $\$ 160$ to rent the oven. Each pretzel costs $\$ .75$ to make.
(a) Write a cost function $C$ , where $x$ represents the number of pretzels made.
(b) Find the revenue function $R$ , if each pretzel in part (a) sells for $\$ 2.00$ .
(c) Give the profit function $P$ .
(d) How many pretzels must be made and sold before the class earns a profit?
(e) Support the results of part (d) graphically.