This chapter discussed a number of sources of American law. Which source of law takes priority in

Question:

This chapter discussed a number of sources of American law. Which source of law takes priority in each of the following situations, and why?
1. A federal statute conflicts with the U.S. Constitution.
2. A federal statute conflicts with a state constitution.
3. A state statute conflicts with the common law of that state.
4. A state constitutional amendment conflicts with the U.S. Constitution.
5. A federal administrative regulation conflicts with a state constitution.