Presented below are selected transactions for the Tinker Company for 2015. Jan. 1 Retired a piece of equipment that was purchased on January 1, 2005. The equipment cost $75,000 on that date, and had a useful life of 10 years with no salvage value. April 30 Sold equipment for $38,000 that was purchased on January 1, 2012. The equipment cost $105,000, and had a useful life of 5 years with no salvage value. Dec. 31 Discarded equipment that was purchased on June 30, 2011. The equipment cost $42,000 and was depreciated on a 5-year useful life with a salvage value of $2,000. Journalize all entries required as a result of the above transactions. Tinker Company uses the straight-line method of depreciation and has recorded depreciation through December 31, 2014.