Question: 1. Find the unit depreciation for an air conditioning-heating unit that costs $7,800 and has a scrap value of $600 if it is expected to operate 40,000 hours.

2. Make a depreciation schedule for the first two years like Table 17-2 for a truck driven 28,580 miles the first year, 32,140 miles the second year, 29,760 miles the third year, 31,810 miles the fourth year, and 27,710 miles the fifth year. The expected life of the truck is 150,000 miles and it costs $18,500. The salvage value is $2,000.