Bau Long-Haut, incorporated, is considering the purchase of a tractor-trainer that would cost 3403.671, would hive e useful life of 7 years, and would have no salvage value. The tractoritrailer would be used in the company's hauling businoss, reswing in additional net cash inflown of Sts.soC per year. The internal rate of retum on the irvestment in the tractor-trailer is closest to fignore income takes.) Click here to view fahibit.128-1 and Exhibit 128-2, to determine the appropriate discount factoris) using the tables provided. Munjple Cholce 81 7) 10% 5%