Suppose that the dollar cost of producing x appliances is c(x) = 1300 + 100x - 0.1x2 (a) Find the average cost per appliance of producing the first 130 appliances. (b) Find the marginal cost when 130 appliances are produced. (c) Show that the marginal cost when 130 appliances are produced is approximately the cost of producing one more appliance after the first 130 have been made, by calculating the latter cost directly dar (a) The average cost per appliance of producing the first 130 appliances is $ / appliance (Simplify your answer. Round to the nearest cent as needed.) (b) The marginal cost when 130 appliances are produced is $ (Simplify your answer. Round to the nearest cent as needed.) (c) The cost of producing one more appliance beyond 130 appliances is $ (Simplify your answer. Round to the nearest cent as needed.)