4) A company that specializes in manufacturing reproductions of classic automobiles has fixed costs of $720,000 and variable costs of $35,000 per automobile. The automobiles sell for $50,000. a.) Write a function, C, for the cost of producing X automobiles. What is the cost of producing 60 automobiles? (5 points) b.) Write a function, R, for the revenue the company makes when selling x automobiles. (5 points) c.) Write a function, P, for the profit in terms of x. What value of x will be the break-even point? (10 points)