Just do part B. The computer solution using excel solver. I do not know how to uses the solver on excel.

13.21 A jeans manufacturing company is evalu- ating the purchase of a new automatic cut- ting machine with fuzzy-logic features. The machine will have a first cost of $40,000, a life of 10 years, and no salvage value. The maintenance cost of the ma- chine is expected to be $2000 per year. The machine will require one operator at a total cost of $30 per hour. A total of 2500 yards of material can be cut each hour by the ma- chine. Alternatively, if human labor is used, six workers, each earning $14 per hour, are required to cut 2500 yards per hour. The MARR is 8% per year. Deter- mine the minimum yards per year to justify the purchase of the automatic machine. Use (a) hand and (b) computer solution