Depreciation expense must be recorded for the month of December The building was purchased on February 1, 2015 for $37,500 with a remaining useful life of 25 years and a salvage value of $3,000. The method of depreciation for the building is straight-line The equipment was purchased on February 1, 2015 for $21,600 with a remaining useful life of 4 years and a salvage value of $1,800 The method of depreciation for the equipment is double-declining balance. Depreciation has been recorded for the building and equipment for months February through November.