13) Couples Company has a machine with a book value of $75,000 and a remaining five-year life. A new machine is available at a cost of $112,500, and Couples can also receive $60,000 for trading in its old machine. The new machine will reduce variable manufacturing costs by $13,000 per year over its five-year useful life. Should the machine be replaced? (Show your detailed analysis and provide an answer to the question) (10 points)