Skysong, Inc. sells office equipment on July 31, 2022, for $17,400 cash. The office equipment originally cost $72,400 and as of January 1, 2022, had accumulated depreciation of $42,300. Depreciation for the first 7 months of 2022 is $5,250. Prepare the journal entries to (a) update depreciation to July 31, 2022, and (b) record the sale of the equipment.