Given relation R with attributes: SSN, FName, LName, Salary, State. Use relational algebra operators to: write a project statement that gives all of the first and last names write a select statement that shows all the name attributes of all people under 21 write a statement that shows the SSN of all the people with a salary greater than or equal to 100,000 OR live in New York Extra credit: Can a primary key be determined by the data alone? Why or why not? What steps are necessary to determine the primary key