which of the following are powers kept by the fedderal govenerment under the federal system of government in the united states?

The powers kept by the federal government under the federal system of government in the United States include:

1. Regulating interstate commerce
2. Coining money and regulating its value
3. Declaring war and raising armies
4. Establishing post offices and post roads
5. Establishing and maintaining a military
6. Establishing federal courts and creating federal laws
7. Conducting foreign relations and entering into treaties
8. Granting patents and copyrights
9. Regulating immigration and naturalization
10. Establishing and operating a national postal service.
11. Establishing standards for weights and measures.

It is important to note that these powers are not exhaustive, and other powers may also be retained by the federal government.