Blue Spruce Company purchased a delivery truck for $40,000 on January 1,2024 . The truck has an expected residual value of $2,000, and is expected to be driven 100,000 kilometres over its estimated useful life of 8 years. Actual kilometres driven were 15,600 in 2024 and 11,400 in 2025. (a) Calculate depreciation expense for 2024 and 2025 using (1) the straight-line method, (2) the units-of-production method, and (3) the double diminishing-balance method at a rate of 25%