A vendor at a carnival sells cotton candy and caramel apples for $3 each. The vendor is $220 charged to set up his booth. Furthermore, the vendor's average cost for each product he produces is approximately $0.25 . (a) Write a linear cost function representing the cost (in ) to the vendor to produce products. (b) Write a linear revenue function representing the revenue (in ) for selling products. (c) Determine the number of products to be produced and sold for the vendor to break even. (d) If products are sold, will the vendor make money or lose money?