4. Suppose a company that manufactures mountain bikes has a fixed monthly cost of $100,000 and that it costs $100 to produce each mountain bike. a. Write the cost function, C, of producing x mountain bikes. b. Write the average cost function, E, of producing x mountain bikes. c. Find and interpret 5(500), E(1,000) , 59,000) and E(4,000). d. What is the horizontal asymptote for the graph of the average cost function, E '? Describe what this represents for the company