Skysong. Inc. purchased a dellvery truck for $30,000 on January 1,2022. The truck has an expected salvage value of $4,000, and is expected to be driven 100,000 miles over its estimated useful life of 8 years. Actual miles driven wore 14,800 in 2022 and 15,000 in 2023. (a1) Calculate depreciable cost per mile under units-of-activity method. (Round answer to 2 decimal places, es. 0.50.) Depreciable cost permile