Answer:
$165
Step-by-step explanation
The net cash flows from financing activities is the difference between the cash inflows received from finance providers and cash outflows paid to them as shown below:
Net cash flow from financing activities=proceeds from preferred stock+proceeds from subordinated bonds-cash paid for common stock retirement-cash dividends-cash paid to retire notes
Net cash flow from financing activities=$210+$270-$150-$75-$90=$165