In Question 81, Machine A works flawlessly, almost never producing scrap (possibly because of regular maintenance). However, Machine B produces scrap regularly. The operation of Machine B projects that in a batch of between 40-60 widgets, there is a 30% change no widgets will be scrapped, a 50% change of producing one scrap part (therefore requiring one extra to be made), and a 20% chance of producing two scrap parts (requiring two extra to be made). The cost of a scrap widget, because of the accumulated time and material, is $14.00. What machine should the company use to produce 40, 50, and 60 widgets?