1.	Simplify x3y0z-2.
		A.	-x3yz2	B.	0
		C.		D.
		Hint
	2.	Simplify . Assume the denominator is not equal to zero.
		A.		B.
		C.		D.
		Hint
	3.	Simplify . Assume the denominator is not equal to zero.
		A.		B.	-b2
		C.		D.
		Hint
	4.	Simplify Assume the denominator is not equal to zero.
		A.		B.	5xy2
		C.	5xy8	D.	1
		Hint
	5.	Simplify .
		A.	x3y2	B.	x2y
		C.	x3y	D.	x2y2
		Hint