Explain operating activity cash inflow

Question

For each transaction listed below, indicate where it would be presented on the statement of cash flows.

proceeds from the sale of common stock purchase of a copyright for cash proceeds from the sale of land cash received as interest from loans that were made to customers collection of accounts receivable from sales to customers

1. operating activity cash inflow 2. operating activity cash outflow 3. investing activity cash inflow 4. investing activity cash outflow 5. financing activity cash inflow 6. financing activity cash outflow