1.	Find a number that when squared equals 484.
		A.	-22 only	B.	None of these is correct
		C.	22 or -22	D.	22 only
		Hint
	2.	Solve the equation x2 = 0.81.
		A.	none of these is correct
		B.	x = -0.9 only
		C.	x = 0.9 only
		D.	x = 0.9 or x = -0.9
		Hint
	3.	Simplify
		A.		B.
		C.		D.
		Hint
	4.	Evaluate.
		A.	–6	B.	5
		C.	6	D.	8
		Hint
	5.	Evaluate.
		A.	2	B.	–2
		C.	3	D.	–3
		Hint