1.	Find the dimensions of A6 × 3 · B3 × 1.
		A.	3 × 3	B.	6 × 3
		C.	6 × 1	D.	3 × 1
		Hint
	2.	If and find 3A + 2B.
		A.		B.
		C.		D.
		Hint
	3.	State whether the product of A3 × 4 and B3 × 4 is defined, and if it is defined, state the dimensions.
		A.	defined, 9 × 16	B.	defined, 3 × 4
		C.	defined, 4 × 3	D.	undefined
		Hint
	4.	Find the product of
		A.
		B.
		C.
		D.
		Hint
	5.	Given that and use the fact that to find AB + AC.
		A.		B.
		C.		D.
		Hint