In a communist system, controls all the land and resources and makes all economic decisions ?

Central government

Explanation:

Communism Central government owns and controls all resources and means of production and makes all economic decisions.

b. 155 enlisted men and no officers

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.