The Audubon Society at Enormous State University (ESU) is planning its annual fund-raising "Eat-a-thon." The society will charge students 50¢ per serving of pasta. The only expenses the society will incur are the cost of the pasta, estimated at 15¢ per serving, and the $350 cost of renting the facility for the evening. a.(Circle the correct words.) For the total cost, revenue and profit functions, the input xis money / servings of pasta, and the output is money / servings of pasta.