A company is considering investing $15,000 in a heat exchanger. The heat exchanger will last five years, at which time it will be sold for $2,500. The maintenance cost at the end of the first year is estimated to be $2,000. Maintenance costs for the exchanger are estimated to increase by $500 per year over its life. As an alternative, the company may lease the equipment for $X per year, including maintenance, with the annual payments to made at the end of each year. a. Choose cash flow diagrams of both alternatives. b. For what value of X should the company lease the heat exchanger? The company expects to earn 6% on its investments. Assume end-of-year lease payments. Click the icon to view the interest and annuity table for discrete compounding when i= 6% per year. ... $15,000 $15,000 O C. EOY $2,500 EOY $2,500 0 1 2 3 4 5 0 2 3 4 5 $2,000 $2,000 $2,500 $3,000 $2,500 $3,000 $3,500 $3.500 $4.000 $4,000 $15,000 $15,000 b. The company should lease the heat exchanger if annual fee is less than $ (Round to the nearest dollar.)