What challenge did congress face when establishing the nation's court system? How did congress solve this problem?

Explanation:The Judiciary Act of 1789, officially titled "An Act to Establish the Judicial Courts of the United States," was signed into law by President George Washington on September 24, 1789. Article III of the Constitution established a Supreme Court, but left to Congress the authority to create lower federal courts as needed. Principally authored by Senator Oliver Ellsworth of Connecticut, the Judiciary Act of 1789 established the structure and jurisdiction of the federal court system and created the position of attorney general. Although amended throughout the years by Congress, the basic outline of the federal court system established by the First Congress remains largely intact today

the answer is b, encourage free trade

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.