1.	Write a2b-3 using positive exponents.
		A.		B.
		C.		D.
		Hint
	2.	Write using negative exponents.
		A.	2-3	B.	2-4
		C.	-24	D.	-2-4
		Hint
	3.	Rewrite without using a fraction bar.
		A.	a2b2(-c3d)	B.	a2b2c-3d-1
		C.	a2b2c-3d	D.	a2b2 - c3d
		Hint
	4.	Write the expression 5-4 using a positive exponent.
		A.		B.
		C.	-54	D.	54
		Hint
	5.	Write the expression m-7 using a positive exponent.
		A.	-m7	B.
		C.	m7	D.
		Hint