1.	Choose the statement that is true.
		A.	Zero cannot be the denominator of a fraction because division by zero is undefined.
		B.	Zero cannot be the numerator of a fraction because zero cannot be divided by any number.
		C.	0 ÷ 0 = 1
		D.	0 ÷ 0 = 0
		Hint
	2.	Simplify the rational expression .
		A.		B.
		C.		D.
		Hint
	3.	Dante used 25% of his money in one day. Express 25% as a fraction in simplest form.
		A.		B.
		C.	4	D.
		Hint
	4.	Simplify .
		A.		B.
		C.		D.
		Hint
	5.	Simplify .
		A.		B.
		C.		D.
		Hint