Net income was $72, 100; accounts receivable decreased by $17, 750; inventory increased by $7, 850; proceeds from the issuance of long-term debt were $23, 450; accounts payable decreased by $6, 050; equipment purchases were $77,000; depreciation and amortization expense was $30, 800. (Amounts to be deducted should be indicated with a minus sign.) Required: Calculate the net cash provided (used) by operating activities for the period