1.	Simplify
		A.	k3	B.
		C.	k-3	D.	k17
		Hint
	2.	Express the result in scientific notation.
		A.	1.25 × 104	B.	1.25 × 10-10
		C.	1.25 × 10-4	D.	1.25 × 1010
		Hint
	3.	Simplify
		A.		B.
		C.		D.
		Hint
	4.	What is ?
		A.		B.
		C.	9	D.	6
		Hint
	5.	If and , what is
		A.		B.	216
		C.		D.	125
		Hint