1.	Simplify x3y0z-2.
		A.		B.
		C.	-x3yz2	D.	0
		Hint
	2.	Simplify . Assume the denominator is not equal to zero.
		A.		B.
		C.		D.
		Hint
	3.	Express 765,000,000,000 in scientific notation.
		A.	7.65 × 10-11	B.	7.65 × 1010
		C.	0.765 × 1012	D.	7.65 × 1011
		Hint
	4.	Express 2.38 × 106 in standard notation.
		A.	2,380,000	B.	0.00000238
		C.	0.000000238	D.	238,000
		Hint
	5.	Express 0.000033 in scientific notation.
		A.	3.3 × 10-5	B.	3.3 × 10-6
		C.	3.3 × 105	D.	3.3 × 10-4
		Hint