1.	Determine .
		A.	-16	B.	-4
		C.	-8	D.	-32
		Hint
	2.	What is the best integer estimate for ?
		A.	7	B.	9
		C.	10	D.	8
		Hint
	3.	If the area of a square is 225 square centimeters, what is its perimeter?
		A.	60	B.	45
		C.	135	D.	15
		Hint
	4.	Find the best integer estimate for .
		A.	-15	B.	-13
		C.	-17	D.	-11
		Hint
	5.	Find
		A.	14, -14	B.	15, -15
		C.	-15	D.	15
		Hint