Novak Corp. purchased a delivery truck for $48,000 on January 1,2022. The truck has an expected salvage value of $12,000, and is expected to be driven 100,000 miles over its estimated useful life of 8 years. Actual miles driven were 12,800 in 2022 and 14,300 in 2023. (a1) Your answer is incorrect: Calculate depreciable cost per mile under units-of-activity method. (Round answer to 2 decimal places, e.g. 0.50.) Depreciable cost per mile