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 47.5 × 10-5 in scientific notation.
		A.	475 × 10-6	B.	4.75 × 10-6
		C.	4.75 × 10-4	D.	0.475 × 10-3
		Hint
	4.	Express 0.034 × 107 in scientific notation.
		A.	0.34 × 106	B.	34 × 104
		C.	3.4 × 109	D.	3.4 × 105
		Hint
	5.	Express 0.000033 in scientific notation.
		A.	3.3 × 10-6	B.	3.3 × 10-4
		C.	3.3 × 105	D.	3.3 × 10-5
		Hint