Under the Yuan dynasty, how did the Mongols open China to foreigners?

In China, for example, the Mongols increased the amount of paper money in circulation and guaranteed the value of that paper money in precious metals. They also built many roads — though this was only partly to promote trade — these roads were mainly used to facilitate the Mongols' rule over China.

Explanation:

honestly you should get that checked out because it really isn't normal

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.