21. Larime Company purchased equipment for $40,000 on January 1, 2007, and will use the double-declining-balance method of depreciation. It is estimated that the equipment will have a 5-year life and a $2,000 salvage value at the end of its useful life. The amount of depreciation expense recognized in the year 2009 will be a. $5,760. b. $9,120. C. $9,600. d. $5,472. 122. Interline Trucking purchased a tractor trailer for $98,000. Interline uses the units-of-activity method for depreciating its trucks and expects to drive the truck 1,000,000 miles over its 12-year useful life. Salvage value is estimated to be $14,000. If the truck is driven 90,000 miles in its first year, how much depreciation expense should Interline record? a. $7,000 b. $8,820 C. $7,560 d. $8,167