Gunkelson Company sells equipment on September 30, 2015, for $18,010 cash. The equipment originally cost $71,880 and as of January 1, 2015, had accumulated depreciation of $42,260. Depreciation for the first 9 months of 2015 is $5,480. Prepare the journal entries to (a) update depreciation to September 30, 2015, and (b) record the sale of the equipment.