Answer:
Inflation;National Banking Act ;Panic of 1907
Step-by-step explanation:
What economic challenge did the newly formed American federal government face? Inflation
Which act created nationally chartered banks and circulated notes backed by the federal government? National Banking Act was pass during the Civil War, it was created so as to provide for nationally chartered banks, whose circulating notes had to be backed by U.S. government
What economic event led to the creation of the Federal Reserve? Panic of 1907 resulted in the creation of Federal Reserve by the Congress due the wreaked havoc on the fragile banking system at that time