1) You must evaluate the purchase of a proposed spectrometer for the R&D department. The supply chain had tested the product the previous year at a cost of $10,000 and recommended the spectrometer. The base price is $140,000, and it would cost another $30,000 to modify the spectrometer for special use by the firm. The spectrometer would be sold after 3 years for $60,000. The applicable depreciation rates under MACRS are 33%, 45%, 15%, and 7%. The spectrometer will require an $10,000 increase in spare parts inventory and accounts payable will rise by $2,000. The spectrometer will also increase sales by 1,000 units with each unit selling for $40. It will also save the firm $50,000 per year in before-tax labor costs. The firm's marginal federal-plus-state tax rate is 35%. a) If the WACC is 9%, should the spectrometer be purchased? Support your answer by calculating the NPV, IRR, MIRR, and payback. b) If the spectrometer will cause an increase in sales from other projects by $15,000 every year, how would this affect the project's NPV? What would this NPV be