A computer system can be purchased for $18,000. The operating costs will be $10,000 per year, and the useful life is expected to be 5 years with a $5,000 salvage value at that time. The present annual sales volume should increase by $16,000 as a result of acquiring the system. Assume the company's tax rate is 50%. Using a straight-line deprecation method, compute annual taxes and IRR for the investment. Rework the previous problem assuming (i) the system's taxable life is 8 years with a salvage value of $2,000, but that (ii) the company still salvages the system after 5 years for $5,000. Describe how this may affect cash flow in the forthcoming years