英语翻译
3.Depreciation by two methods
A machine was acquired on December 31 at a cost of $315 000.Its estimated useful life was 20 years.Assuming that it will have no residual value,
a.Determine the depreciation for each of the first two years by the straight-line method and the double declining method.
b.Make the accounting entry for the depreciation.
c.Comparing those two methods,what are the strength and weakness for them.