The definition is: <span>the benefit gained from consuming one additional unit of a good or service.</span>
The answer is <span>C. Missouri was admitted as a slave state and Maine as a free state.
It said that any sate below 35 parallel was a salve sate and all above were free. </span>
Perhaps the most single valuable authority you have as president in this way is to issue an executive order, which can commit troops to a conflict for a limited about of time without Congressional approval. Tools of foreign policy would include sending in diplomats to try to negotiate peaceful terms.