Assume that on September 30,2020 , AirUS, an international airline based in Germany, purchased a Jumbo aircraft at a cost of 45,000,000 ( is the symbol for the euro). AirUS expects the plane to remain useful for four years (4,000,000 miles ) and to have a residual value of 6,000,000. AirUS will fly the plane 350,000 miles during the remainder of 2020 . Read the requirements. a. Compute AirUS's depreciation on the plane for the year ended December 31,2020 , using the straight-line method. The depreciation on the plane for the year ended December 31, 2020, using the straight-line method is Requirements Compute AirUS's depreciation on the plane for the year ended December 31, 2020, using the following methods: a. Straight-line b. Units-of-production c. Double-declining-balance Which method would produce the highest net income for 2020 ? Which method produces the lowest net income