A computer firm is planning to sell a new graphing calculator. For the first year, the fixed costs for setting up the new production line are $115,000. The variable costs for producing each calculator are estimated at $20. The sales department decides that the calculators can be sold during the first year at a price of $43 each. a) Find C(x), the total cost of producing x calculators. b) Find R(x), the total revenue from the sale of x calculators. c) How many calculators must the firm sell in order to break even? a) Find C(x) in dollars. C(x) =