1.	Solve the equation x2 = 0.81.
		A.	x = 0.9 only
		B.	x = -0.9 only
		C.	none of these is correct
		D.	x = 0.9 or x = -0.9
		Hint
	2.	Determine whether the number is rational or irrational.
		A.	neither	B.	both
		C.	rational	D.	irrational
		Hint
	3.	Simplify
		A.		B.
		C.		D.
		Hint
	4.	Evaluate.
		A.	8	B.	6
		C.	5	D.	–6
		Hint
	5.	Evaluate.
		A.	–3	B.	–2
		C.	3	D.	2
		Hint