Blue Spruce Bus tines uses the units of activity methad in depreciating its buses. One bus was purchased on January 1, 2022, at a cost. of $240.418. Over its 5 year useful life, the bus is expected to be driven 147.400 miles. Salvage value is eqpected to be $9.000 (a) Compite the depreciable cost per unit. (Round answer to 2 decimal places, eg, as0)