Tomko Company purchased machinery with a list price of $96,000. They were given a 10% discount by the manufacturer. They paid $600 for shipping and sales tax of $4,500. Tomko estimates that the machinery will have a useful life of 10 years and a residual value of $30,000. If Tomko uses straight-line depreciation, annual depreciation will be Select one: a. $6,150. b. $5,640. c. $9,150. d. $6,108. Mather Company purchased equipment on January 1, 2016 at a total invoice cost of $336,000; additional costs of $6,000 for freight and $30,000 for installation were incurred. The equipment has an estimated salvage value of $12,000 and an estimated useful life of five years. The amount of accumulated depreciation at December 31, 2017 if the straight-line method of depreciation is used is: Select one: a. $129,600. b. $148,800. c. $144,000. d. $132,000