Suppose that the dollar cost of producing q appliances is c(q) = 1000 + 70g -0.1q. (a) Find the average cost per appliance of producing the first 100 appliances. (b) Find the marginal cost when 100 appliances are produced. ... (a) The average cost per appliance of producing the first 100 appliances is $ (Round to the nearest cent as needed.) (b) The marginal cost when 100 appliances are produced is $ (Round to the nearest cent as needed.) per appliance