A printing company works on three types of printing jobs, each of which could be produced on the same model printing machine. The predicted annual demands and typical order sizes are shown in the table. The company has 2000 production hours available each year and requires a 10% capacity cushion to allow for preventive maintenance, breakdowns, and other unforeseen circumstances. How many printing machines must they have under these circumstances? Job Type Demand Process time per unit Average order size setup time (hours) Job A 6000 8 40 Job B 4000 75 100 75 Job C 5000 25 50 .5