What are the benefits of a federalist system and the Supremacy Clause?

Which effect does an increase in a country’s literacy rate have on the people who live there?

The purpose of laws were to restrict the rights of african americans who lived in southern states. a) "jim crow" b) "civil rights" c) "anti prohibition" d) "reconstruction acts"

In the construction of a new housing development which factor of production can be categorized as land?