In recent years, Monty Transportation purchased three used buses. Because of frequent turnover in the accounting department, a different accountant was in charge of selecting the depreciation method for each bus, and various inethods have boon used. Information concerning the buses is summarized in the table below. For the declining balarke method, the company uses the double-declinirg rate. For the units-of-activity method, total miles are expected to be 120,000 . Actual miles of use in the first 3 years were 2021,24,000:2022,35.500; and 2023, 32,000 (a1) For Bus a3, calculate depreciation expense per mile under units of -activity method. (Round anwer to 2 decimal places, es, 0.50) Depreciation expense: per mile Compute the amount of accumulated depreciation on each bus at December 31,2022 If Bus 2 was purchased on April 1 instead of January 1, what is the depreciation expense for this bus in (1) 2020 and (2) 2021 ? (Round answers to 0 decimal places, eg, 5,275.)