AA Appliances manufactures three machines: washers, dryers, and dish washers, Data on the price and costs for the units are shown below. It is calculated that manufacturing overhead is allocated to the three products using a rate of $10 per machine hour, It is revealed that there are 140 extra machine ho allocate to produce another product. Do not enter dollar signs or commas in the input boxes Round all answers to 2 decimal places. a) Calculate the machine hours used per item. b) Colculate each item's relevant contribution margin per machine hour. b) Calculate each item's relevant contribution margin per machine hour. c) If the company uses the the available extra 140 machine hours to produce more product, (1) which item should AA Appliances produce, and (2) how much will be generated? AA Appliances should make c) If the company uses the the available extra 140 machine hours to produce more product, (1) which item should AA Appliances produce, and (2) how much will be generated