On 1/1/2011, ABC Company purchased a piece of equipment costing $65,000. The equipment is expected to have a useful life equal to 5 years and a salvage value equal to $5,000. Calculate the first two years depreciation expense using the following methods respectively. 1) the straight-line method 2011: 2012: 2) the double-declining method and 2011: 2012: 3) the sum-of-years-digits method. 2011: 2012: