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13. DO IT YOURSELF SURGERY, INC. has decided to invest in several equipment projects. If the company has a Total of $100,000 to invest in, which should they buy and why? Use NPV and IRR in your answer to explain why. XRAY Equipment has a cost of $42,000 and cash flows by year starting in year 1 to year 5 of $10,000; $11,000; $12,000; $10,900 & $10,421. Cost of Borrowing is 5%. MRI Equipment has a cost of $58,000 and cash flows by year starting in year 1 to year 5 of $12,000; $14,000; $16,000; $15,500 & $15,000. Cost of Borrowing is 6%. Ultrasound Equipment has a cost of $40,000 and cash flows by year starting in year 1 to year 5 of $13,000; $12,000; $11,000; $10,875 & $10,000. Cost of Borrowing is 7%