1.	Simplify Assume the denominator is not equal to zero.
		A.		B.
		C.		D.
		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 × 1010	B.	0.765 × 1012
		C.	7.65 × 10-11	D.	7.65 × 1011
		Hint
	4.	Express 0.034 × 107 in scientific notation.
		A.	3.4 × 105	B.	34 × 104
		C.	3.4 × 109	D.	0.34 × 106
		Hint
	5.	Express 0.000033 in scientific notation.
		A.	3.3 × 10-6	B.	3.3 × 105
		C.	3.3 × 10-5	D.	3.3 × 10-4
		Hint