1.	The set of whole numbers and their opposites are known as ______.
		A.	absolute values	B.	negative numbers
		C.	integers	D.	positive numbers
		Hint
	2.	Simplify |-13| - |5|.
		A.	-8	B.	-18
		C.	18	D.	8
		Hint
	3.	Find the sum 17 + |-8|.
		A.	25	B.	9
		C.	-25	D.	-9
		Hint
	4.	Evaluate the expression |a| - 7 if a = -23.
		A.	16	B.	-16
		C.	30	D.	-30
		Hint
	5.	Which symbol makes the expression -15 ___ -14 true?
		A.	=	B.	>
		C.	×	D.	<
		Hint