robert is considering the purchase of 80 acres of land south texas for $3,256.38 per acre. a bank will loan him $3,030.00 per acre of land and the loan will be fully amortized over 12 years at 9%. the outstanding balance of loan will be paid at the end of the fifth year. assume that the marginal tax rate is 14% and the inflation rate is 3%. (answer the following questions on a per acre basis)