A company's total cost, in millions of dollars, is given by C(t) = 120 - 50e Ay + 150- where t is the time in years since the start-up date. The graph of C(t) is shown to the right. Find each of the following. a) The marginal cost, C'(t) b) C (0) 75- c) C (6) d) Find lim C(t) and lim C'(t) 15 30 a) C'(t) = (Do not include the $ symbol in your answer.)