Cruz Company purchased a computer on June 30, 2020, for $16,800. The computer had a salvage value of $4,800 and useful life of six years. Note: In answering the following questions, do not round until your final answer. Round your final answer to the nearest whole dollar. a. Using the declining-balance depreciation method (200%), determine depreciation expense for 2021. Answer b. Using the declining-balance depreciation method (150%), determine depreciation expense for 2021. Answer c. Using the straight-line depreciation method, determine depreciation expense for 2021. 2000