Scott Olson | Getty ImagesTwo Robinhood broker-dealers agreed to pay $45 million in combined penalties to settle administrative charges by the Securities and Exchange Commission that they violated more than 10 separate securities law provisions related to their brokerage operations.The violations by Robinhood Securities LLC and Robinhood Financial LLC related to failures to report suspicious trading in a timely manner, failing to implement adequate identity theft protections, and failing to adeq...