Milliken Company paid $4.60 million to purchase stock in another company, $2.20 million to repurchase treasury shares, $3.50 million to buy short-term investments, sold used equipment for $0.92 million when its book value was $2.40 million, and purchased new equipment for $4.6 million. What was the net cash flow from investing activities?

$7.92 million net cash outflow.

$11.78 million net cash outflow.

$13.98 million net cash outflow.

$13.62 million net cash outflow.