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