Riverbed Company purchased a delivery truck for $33,000 on January 1, 2020. The truck has an expected salvage value of $2,760, and is expected to be driven 108,000 miles over its estimated useful life of 10 years. Actual miles driven were 16,800 in 2020 and 12,600 in 2021. (a1) Calculate depreciation expense per mile under units-of-activity method. (Round answer to 2 decimal places, e.g. 0.50.) Depreciation expense per mile Save for Later Attempts: 0 of 1 used Submit