(6 points) A company purchased a machine costing $750,000 (plus 5% in taxes) on January 1, 2015. Its estimated salvage value is $80,000 and its expected life is 10 years. It cost the company $90,000 to install and make the machine ready for full use. Instructions Record the depreciation expense by each of the following methods. (a) (3 points) Straight-line for 2015 (b) (3 points) Double-declining balance for 2017