Krakow Corporation reported 2010 net income of $450,000, including the effects of depreciation expense of $60,000, and amortization expense on a patent of $10,000. Also, cash of $50,000 was borrowed on a 5 -year note payable. Based on this data, total cash inflow from operating activities using the indirect method for 2010 was: a. $570,000 b. $520,000 c. $470,000, d. $440,000