1.	Write using negative exponents.
		A.	2-4	B.	-24
		C.	2-3	D.	-2-4
		Hint
	2.	Evaluate the expression 5n4m-2 if m = 6 and n = 3.
		A.		B.
		C.	-20	D.	-5
		Hint
	3.	Write 0.478 in scientific notation.
		A.	4.78 × 102
		B.	478 × 101
		C.	4.78 × 10-2
		D.	4.78 × 10-1
		Hint
	4.	The diameter of a volcanic particle averaged 0.000022 meter. What is this measure written in scientific notation?
		A.	2.2 × 105
		B.	0.22 × 10-4
		C.	2.2 × 10-5
		D.	2.2 × 10
		Hint
	5.	Evaluate the expression.–2-4
		A.		B.	–16
		C.		D.
		Hint