Determine the amount of depreciation expense for the years ended December 31, Year 1, Year 2, Year 3, and Year 4, by (a) the straight-line method, (b) units-of-activity method, and (c) the double-declining-balance method.

Note: FOR DECLINING BALANCE ONLY, round the multiplier to four decimal places. Then round the answer for each year to the nearest whole dollar.

a. Straight-line method

Year	Amount
Year 1	$fill in the blank 1
Year 2	$fill in the blank 2
Year 3	$fill in the blank 3
Year 4	$fill in the blank 4

b. Units-of-activity method

Year	Amount
Year 1	$fill in the blank 5
Year 2	$fill in the blank 6
Year 3	$fill in the blank 7
Year 4	$fill in the blank 8

c. Double-declining-balance method

Year	Amount
Year 1	$fill in the blank 9
Year 2	$fill in the blank 10
Year 3	$fill in the blank 11
Year 4	$fill in the blank 12