A company purchased a computer system at a cost of $27,000. The estimated useful life is 6 years, and the estimated residual value is $8,000. Assuming the company uses the double-declining-balance method, what is the depreciation expense for the second year? (Do not round your intermediate calculations. Round your answer to the nearest whole dollar amount.) Multiple Choice $8,250 $6.000 $9,000. $7.500