A was all correct - B and C need work - posted below ( thanks for your time)

B. Calculate the depreciation expense for each of the five years, assuming the use of double-declining-balance depreciation. (Enter all amounts as positive values. Do not round intermediate calculations. Round your answers to the nearest dollar amount.)

Year Annual Depreciation

1 $14,160selected answer correct

2 $11,640selected answer incorrect

3 $4,579selected answer incorrect

4 $2,748selected answer incorrect

5 $321selected answer incorrect

C. Assume that Becker Office Service sold the computer system at the end of the fourth year for $19,500. Compute the amount of gain or loss using each depreciation method. (Loss amounts should be indicated with a minus sign. Do not round intermediate calculations. Round the final answers to nearest dollar amount.)

Amount Effect Straight-Line $7,000selected answer incorrect

Gainselected answer correct

Double-Declining-Balance $15,131selected answer incorrect

Gainselected answer correct