1.	Evaluate the expression 5n4m-2 if m = 6 and n = 3.
		A.	-20	B.	-5
		C.		D.
		Hint
	2.	Write 0.478 in scientific notation.
		A.	4.78 × 10-1
		B.	4.78 × 102
		C.	4.78 × 10-2
		D.	478 × 101
		Hint
	3.	How would 9.3 × 10-7 be written in standard form?
		A.	0.00000093
		B.	0.000000093
		C.	93,000,000
		D.	930,000,000
		Hint
	4.	Evaluate the expression.–2-4
		A.		B.
		C.	–16	D.
		Hint
	5.	Simplify the expression. –24x ÷ –4x-3
		A.	6x4	B.
		C.		D.
		Hint