1.	The set of whole numbers and their opposites are known as ______.
		A.	negative numbers	B.	integers
		C.	positive numbers	D.	absolute values
		Hint
	2.	How can you represent writing a check for $10 as an integer?
		A.	-10	B.	|+10|
		C.	|-10|	D.	+10
		Hint
	3.	Find the sum 17 + |-8|.
		A.	25	B.	-25
		C.	9	D.	-9
		Hint
	4.	Evaluate the expression |a| - 7 if a = -23.
		A.	-16	B.	16
		C.	-30	D.	30
		Hint
	5.	Evaluate the expression 2|x| - 3|y| if x = -8 and y = -5.
		A.	1	B.	-31
		C.	31	D.	-1
		Hint