12. The demand function for an item is p = 115 2J5 and the cost function is C(m) = 2:132 + 100. a) What is the total cost of producing 10 items? b) What is the average cost of producing 10 items? c) What is the marginal cost of producing 10 items? (1) Write a function P(sc) giving the prot in terms of :c. ) 6 Find P(10), rounded to the nearest cent