McAfee Construction acquired the following plant assets on Jan 1, 2009. The delivery equipment was driven for 12,000 miles of its useful estimated life of 100,000 miles. Compute depreciation for each of the assets. Assets: Cost: Residual Value: Useful Life: Depreciation Method: Office equp. $150,000 $5,000 5 years straight-line Building $240,000 $20,000 20 years double-declining balance Delivery equp. $125,000 $25,000 10 years units-of-production