1.	Find .
		A.	15	B.	-15
		C.	-14	D.	14
		Hint
	2.	Find
		A.		B.
		C.		D.
		Hint
	3.	Determine whether the number is rational or irrational.
		A.	rational	B.	irrational
		C.	both	D.	neither
		Hint
	4.	Simplify .
		A.		B.
		C.		D.
		Hint
	5.	Evaluate.
		A.	6	B.	–6
		C.	5	D.	8
		Hint