12.20 A company just purchased an intelligent robot, which has a first cost of $280,000. Since the robot is unique in its capabilities, the company expects to be able to sell it in 4 years for $200,000. a. If M&O costs are $100,000 per year, determine the MACRS depreciation in year 2 . Assume the recovery period for robots is 5 years and the MARR is 12% when the inflation rate is 4% per year. b. Determine the book value of the robot at the end of year 2