1.	Evaluate the expression 5n4m-2 if m = 6 and n = 3.
		A.		B.	-5
		C.	-20	D.
		Hint
	2.	The diameter of a volcanic particle averaged 0.000022 meter. What is this measure written in scientific notation?
		A.	2.2 × 105
		B.	2.2 × 10-5
		C.	2.2 × 10
		D.	0.22 × 10-4
		Hint
	3.	Simplify (3x3)4.
		A.	81x12	B.	27x7
		C.	3x7	D.	12x12
		Hint
	4.	Evaluate the expression.–2-4
		A.		B.
		C.	–16	D.
		Hint
	5.	Simplify the expression. –24x ÷ –4x-3
		A.		B.
		C.		D.	6x4
		Hint