Answer:
30% or 3/10
Explanation:
6 out of 20 is 30%
as a fraction 30% is 3/10
P.S. you put your question under History and not Math.
The main way in which popular sovereignty applied to federalism is that it allowed settlers of new land to determine whether this new territory would be "slave" or "free", meaning that the states a large amount of power as well as the federal government.
Answer:
Railroads often owned the right-of-way along the tracks, thus facilitating the sale of land to potential homeowners. Railroads also made it easier to get mail and consumer goods to people who had moved West.