Sphynx Corporation purchased a delivery truck on April 1, 2015, at a total cost of $90,000. The truck has an estimated useful life of 12 years or 168,000 miles and a salvage value of $6,000. Instructions: Complete the following table by presenting the annual depreciation expense for the years 2015 and 2016, under the indicated depreciation methods. Assume actual activity in terms of units of output was: 2015-12,000 miles and 2016-22,000 miles. Annual Depreciation Expense 2015 2016 Straight-Line: Units of Activity