7. a the authority given to a person or organization to act as an agent to a principal in commercial transactions. b the fee allotted to an agent for services rendered. 8 the state of being charged with specific duties or responsibilities. 9 the act of committing a sin, crime, etc.10 something, esp. a sin, crime, etc., that is committed. 11 good working condition or (esp. of a ship) active service (esp. in the phrases in or into commission, out of commission). authority or power given in a general area, without precisely defined terms of reference. Royal Commission. n (in Britain) a body set up by the monarch on the recommendation of the prime minister to gather information about the operation of existing laws or to investigate any social, educational, or other matter.
The answer is in the 'necessary and proper clause' of the U.S. Constitution, better known as the 'elastic clause,' which allows Congress to make laws it needs to carry out its own powers.
For each sentence, you will have to decide if the adjective clause is essential or nonessential and then use commas accordingly. Essential clauses do not require commas. An adjective clause is essential when you need the information it provides.