1.	The sum of two negative rational numbers is _______.
		A.	negative	B.	zero
		C.	one	D.	positive
		Hint
	2.
		A.		B.
		C.		D.
		Hint
	3.	Find -10.75 - 2.25.
		A.	8.5	B.	-8.5
		C.	-13	D.	13
		Hint
	4.	Evaluate d - c if d = 1.7 and c = -3.8.
		A.	-5.5	B.	5.5
		C.	-2.1	D.	2.1
		Hint
	5.	Find 4.5 + (-2.9) + 3.2.
		A.	-4.8	B.	10.6
		C.	4.8	D.	-10.6
		Hint