Cell Pro makes cell phones and has weekly costs of $1500 for rent, utilities, and equipment plus labor and material costs of $18.50 for each phone it makes.

(a) If x represents the number of phones produced and sold, write an expression for Cell Pro’s weekly total cost.

(b) If Cell Pro sells the phones to dealers for $45.50 each, write an expression for the weekly total revenue for the phones.

(c) Cell Pro’s weekly profit is the total revenue minus the total cost. Write an expression for Cell Pro’sweekly profit.