Grouper Taxi Service uses the units-of-activity method in computing depreciation on its taxicabs. Each cab is expected to be driven 142,000 miles. Taxi no. 10 cost $44,100 and is expected to have a salvage value of $1,500. Taxi no. 10 is driven 35,800 miles in year 1 and 18,300 miles in year 2. (1) Calculate depreciation cost per mile using unit-of-activity method. (Round answer to 2 decimal places, e.g. 0.50.) Depreciation cost per mile