How might the Louisiana Purchase opened up new possibilities for westward expansion during the 19th century?

It is known as the "greatest real estate deal in history", as it was purchased for just about $15 million at the time, stretching from Canada to New Orleans, and from the Mississippi River to the Rocky Mountains. It opened up 828,000 square miles for anyone to be able to travel to, or to put this into perspective, it doubled the size of the United States at the time.

federal power is further limited with a system of checks and balances that gives each branch of government a measure of power over the others.

explanation:

the respondent is the party against whom a petition is filed