1.	Find + + .
		A.	1	B.
		C.		D.
		Hint
	2.	To add fractions with like denominators,________.
		A.	add the numerators and subtract the denominators	B.	subtract the numerators
		C.	add the numerators	D.	add the numerators and add the denominators
		Hint
	3.	Subtract from .
		A.	9	B.	−9
		C.		D.
		Hint
	4.	Evaluate a - b if a = and b = .
		A.		B.
		C.	-1	D.	1
		Hint
	5.	Solve r = +.
		A.	r =	B.	r = 1
		C.	r =	D.	r = -1
		Hint