1.	Which number is not a perfect square?
		A.	25	B.	9
		C.	49	D.	27
		Hint
	2.	A number squared is 441. What is the number?
		A.	21	B.	194,481
		C.	20	D.	220.5
		Hint
	3.	A square has an area of 1.21 cm2. What is the length of each side of the square?
		A.	1.1 cm	B.	0.605 cm
		C.	1.05 cm	D.	1.4641 cm
		Hint
	4.	Find .
		A.	30	B.	90
		C.	-30	D.	30 and -30
		Hint
	5.	Find .
		A.	15	B.	-15
		C.	-25	D.	25
		Hint