Final answer:
If the United States had a financial account deficit of $50 billion, it would mean that the United States has a trade deficit and a deficit in its current account balance.
Step-by-step explanation:
A current account deficit means that a country is a net borrower from abroad. Conversely, a positive current account balance means a country is a net lender to the rest of the world. In this case, if the United States has a financial account deficit of $50 billion, it would mean that the United States has a trade deficit and a deficit in its current account balance. This indicates an overall net inflow of foreign investment capital from abroad.