Answer:
Cash flows from investing activities is $1,900
Explanation:
Cash flow from Investing Activities involves movements in the purchase and / or sell of capital expenditures.
Prepare the Cash flow from Investing Activities Section as follows :
Cash flow from Investing Activities
Proceeds from Sale of short-term stock investments  $ 8,500
Purchase of Equipment                          -$6,600
Net Cash flow from Investing Activities              $1,900
Conclusion :
Cash flows from investing activities is $1,900