1.	Simplify x3y0z-2.
		A.		B.	-x3yz2
		C.		D.	0
		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.	5xy8	B.	1
		C.		D.	5xy2
		Hint
	4.	Express 765,000,000,000 in scientific notation.
		A.	7.65 × 1011	B.	0.765 × 1012
		C.	7.65 × 1010	D.	7.65 × 10-11
		Hint
	5.	Express 0.000033 in scientific notation.
		A.	3.3 × 10-5	B.	3.3 × 10-6
		C.	3.3 × 10-4	D.	3.3 × 105
		Hint