At January 1, 2017, Jamie Lannister Corp. had a cash balance of $80,000. Lannister's 2017 net income was $67,000. Accounts receivable increased by $15,000, inventory decreased by $12,000 and accounts payable decreased by $10,000. Lannister sold land for $50,000, purchased equipment for $32,000, and paid dividends of $8,000. Depreciation expense for the year was $25,000. Based on this information, the cash balance at December 31, 2017 is?