Marginal Cost The total daily cost (In dollars) incurred by Delta Electronics in producing x MP3 players is C(x) = 0.0002x3 - 0.06x2 + 24x + 3,000 (o s x s 500) where x stands for the number of units produced. (Round your answers to two declmal places.) (a) What is me actual cost (in dollars) incurred in manufacturing the 2015t MP3 player, assuming that the 200th player was manufactured? $ E (b) What is the marginal cost (in dollars) when x = 200? s