Problem 4 Office copying equipment that costs $6,000 now is expected to be kept for 5 years. At the end of 5 years, it will have a salvage value of $800. The annual operating and maintenance cost is $1,000 per year, and the annual benefit generated by the equipment is $3,000 per year. If the receipts and disbursements are made at the end of the year, except the initial cost which is paid at present (end of year 0), describe this investment proposal in terms of its cash flows