Janet Ltd. is considering purchasing laser equipment for $72,000. The machine will require additional working capital of $8,000. Its anticipated seven-year life will generate additional revenue of $31,000 annually with operating costs, excluding depreciation, of $14,000. At the end of seven years it will have a salvage value of $9,760 and return $8,000 in working capital. Required: A) If the company has a required rate of return of 12 percent, what is the net present value of the proposed investment? B) What is the internal rate of return