Larkspur, Inc. purchased a delivery truck for $34,000 on January 1, 2022. The truck has an expected salvage value of $5,000, and is expected to be driven 100,000 miles over its estimated useful life of 8 years. Actual miles driven were 13,800 in 2022 and 10,200 in 2023.

Compute depreciation expense for 2022 and 2023 using (1) the straight-line method, (2) the units-of-activity method, and (3) the double-declining-balance method.