Carlos and Sloane, tennis consultants, are interested in buying an automated camera system to analyze arm and leg movements for their tennis students. They feel that they could charge $100 per hour to students to use this machine. They have received three competing bids for such a system. But as their skills relate more to tennis, they are confused about which to accept. They have hired the USFSP Cost 2 class to analyze such. They think all the systems would have a useful life of 5 years