1.	Simplify
		A.	k-3	B.
		C.	k3	D.	k17
		Hint
	2.	Express the result in scientific notation.
		A.	1.25 × 10-4	B.	1.25 × 10-10
		C.	1.25 × 1010	D.	1.25 × 104
		Hint
	3.	Simplify
		A.		B.
		C.		D.	m
		Hint
	4.	What is ?
		A.		B.
		C.	9	D.	6
		Hint
	5.	If and what is
		A.		B.
		C.	–13	D.	–36
		Hint