Jаcksоn Incоrpоrаted purchаsed a truck for $36,000. The truck had a useful life of 150,000 miles over 4 years and a $6,000 salvage value. Jackson drove the truck 40,000 miles in Year 1 and 24,000 miles in Year 2. If Jackson uses the units-of-production method, what is the accumulated depreciation at the end of Year 2?