After completing the railroad, what was the average time to travel across the US? This is the story of US “heartland “ question please answer this

6 days.

Explanation:

Before completing the railroad, horses is the only alternative that the people have for road transportation. If we count the amount of time both the travelers and the horses need to rest, travelling across united states using horses could take up around 150 days. The train could cover the distance in only 6 days.

The completion of this railroad was really important for US' economy because it enable companies to distribute their goods to other states at a significantly cheaper price.

congress also has implied powers, which derive from the necessary and proper clause of the constitution and permit congress "to make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states.

the correct answer is option d

the economy will face inflation