The firm Arboretum is considering an investment in equipment to produce a new product. The cost of the equipment is $150,000. The equipment will be depreciated on a straight line basis over 5 years to a salvage value of 0. Arboretum expects to use the equipment for three years and then to sell it for $60,000. For the three years of operation the equipment will generate revenues of $40,000 per year and will have an operating cost of $3,000 per year. Assuming the opportunity cost of capital for Arboretum is 12% and its tax rate is 35%,

(a) Should Arboretum purchase the equipment?

(b) Does the decision change if the annual revenues that the equipment will generate are $80,000?

(c) Does the decision change if the annual revenues that the equipment will generate are $20,000?

(d) If the opportunity cost of capital for Arboretum is 30% percent should Arboretum purchase the equipment?