1.	Write using negative exponents.
		A.	2-4	B.	-2-4
		C.	2-3	D.	-24
		Hint
	2.	Write 0.478 in scientific notation.
		A.	4.78 × 102
		B.	4.78 × 10-2
		C.	478 × 101
		D.	4.78 × 10-1
		Hint
	3.	How would 9.3 × 10-7 be written in standard form?
		A.	93,000,000
		B.	0.00000093
		C.	0.000000093
		D.	930,000,000
		Hint
	4.	The diameter of a volcanic particle averaged 0.000022 meter. What is this measure written in scientific notation?
		A.	2.2 × 10-5
		B.	2.2 × 105
		C.	2.2 × 10
		D.	0.22 × 10-4
		Hint
	5.	Evaluate the expression.–2-4
		A.	–16	B.
		C.		D.
		Hint