abc company on jan 1, 2021 purchased a delivery van for $24,000. to complete the purchase, the company also incurred a $800 shipping cost and $1,200 sales tax. the company estimates that at the end of its four-year service life, the van will be worth $4,000. during the four-year period, the company expects to drive the van 100,000 miles. actual miles driven each year were 20,000 miles in year 1; 25,000 miles in year 2; 39,000 miles in year 3; and 55,000 miles in year 4. using the double-declining-balance method, what are the amounts of depreciation expense for year 2?