In a dynasty how do people decide who will become the next ruler?

By the death(or removal) of the current leader of a Country ruled by a dynasty.

Explanation: Bassically, the heir of the previous sitting chief official would become the next ruler of the dynasty.

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.

not sure might be he acquired the entire oregon territory from great britain