g the epson press will cost you $450,000. the epson will last 7 years. the cost of operating and maintaining the press will be $70,000 for the first three years and $80,000 for the last four years of its useful life. at the end of the seventh year you will sell the press for $50,000. the appropriate discount rate is 10%. calculate the equivalent annual cost of each printing press. which one should you buy?