A plant asset cost $300800 and is estimated to have a $36000 salvage value at the end of its 8-year useful life. The annual depreciation expense recorded for the third year using the double-declining-balance method would be

$42300.

$37236.

$29370.

$25920.

A factory machine was purchased for $393000 on January 1, 2021. It was estimated that it would have a $74000 salvage value at the end of its 5-year useful life. It was also estimated that the machine would be run 30000 hours in the 5 years. The company ran the machine for 3900 actual hours in 2021. If the company uses the units-of-activity method of depreciation, the amount of depreciation expense for 2021 would be

$74000.

$51090.

$82940.

$41470.