Compute depreciation expense for 2019 and 2020 using (1) the straight-line method, (2) the units-of-activity method, and (3) the double-declining-balance method. (Round depreciable cost per unit to 2 decimal places, e.g. 0.50 and depreciation rate to 0 decimal places, e.g. 15%. Round final answers to 0 decimal places, e.g. 2,125.)

				Depreciation Expense
				2019		2020
(1)		Straight-line method		$enter a dollar amount rounded to 0 decimal places		$enter a dollar amount rounded to 0 decimal places
(2)		Units-of-activity method		$enter a dollar amount rounded to 0 decimal places		$enter a dollar amount rounded to 0 decimal places
(3)		Double-declining-balance method		$enter a dollar amount rounded to 0 decimal places		$enter a dollar amount rounded to 0 decimal places