Amy Corporation's income statement showed the following: profit, $72,000; depreciation expense, $8,000; and gain on sale of plant assets, $6,000. An examination of the company's current assets and current liabilities showed the following changes as a result of operating activities: accounts receivable decreased $5,700; merchandise inventory increased $8,000; prepaid expenses decreased $2,100; accounts payable increased $1,700. Calculate the net cash provided (or used) by operating activities.