On January 1, 2010, Bart Company purchased equipment at a cost of $135,000. The equipment was estimated to have a useful life of 5 years and a salvage value of $15,000. Bart uses the sum of the years' digits method of depreciation. What should the accumulated depreciation be on December 31, 2012? Select one: O a. $108,000 b. $84,000 O c. $72,000 0.d. $54,000 O e. $96,000 Wheeler Corporation constructed a building at a cost of $20,000,000. The weighted average accumulated expenditures were $8,000,000, actual interest was $1,200,000, and avoidable interest was $800,000. If the salvage value is $1,200,000, and the useful life is 40 years, depreciation expense for the first full year using the straight line method is Select one: a. $475,000 O b. $490,000 c. $500,000 d. $520,000 e. $670,000