Question 4 In recent years, Martinez Transportation purchased three used buses. Because of frequent turnover in the accounting department, a different accountant selected the depreciation method for each bus, and various methods were selected. Information concerning the buses is summarized as follows. Bus Useful Life In Years Acquired 1/1/18 1/1/18 1/1/19 Cost $ 97,300 124,000 89,900 Salvage Value $ 8,000 11,000 8,000 Depreciation Method Straight-line Declining balance Units-of-activity For the declining balance method, the company uses the double declining rate. For the units-of-activity method, total miles are expected to be 117,000. Actual miles of use in the first 3 years were 2019, 27,500; 2020, 35,000; and 2021, 31,500. (al) For Bus #3, calculate depreciation expense per mile under units-of-activity method. (Round answe places, e.g. 0.50.) Depreciation expenses per mile LINK TO TEXT