Answer:
$345,000
Step-by-step explanation:
Operating cash flow is the amount of money, needed to run the daily affairs or operations of a business entity. It is calculated as;
OCF = Net income + Depreciation + Interest expense + Reduction in working capital.
Given that;
Interest expense = $210,000
Reduction in working capital = $135,000
Operating cash flow = $210,000 + $135,000
Operating cash flow = $345,000
* Note.
The changes in long term debt, common stock and additional paid in capital falls under cash from financing activities, hence are not required.
Also, the net capital spending has to do with investing activities and not cash flow from operating activities, hence not required.
Therefore, the firm's 2018 operating cash flow is $345,000.