Calculate the amount of depreciation expense that sarasota should record for machine b each year of its useful life under the following assumptions. (round depreciation cost per unit to 2 decimal places, e. g. 12.25. round final answers to 0 decimal places, e. g. 2,125.) (1)sarasota uses the straight-line method of depreciation. (2)sarasota uses the declining-balance method. the rate used is twice the straight-line rate. (3)sarasota uses the units-of-activity method and estimates that the useful life of the machine is 135,840 units. actual usage is as follows: 2020, 47,500 units; 2021, 37,500 units; 2022, 27,500 units; 2023, 23,340 units.