1.	Write the matrix equation as a system of linear equations.
		A.	-2s + t = 12 5s + 8t = 7	B.	-2s + 5t = 7 s + 8t = 12
		C.	-2s = 7 5t = 12	D.	-2s + t = 7 5s + 8t = 12
		Hint
	2.	Given that the inverse of the coefficient matrix is , solve the matrix equation .
		A.	(4, 3)	B.	(2, 4)
		C.	(-2, 3)	D.	(-4, 3)
		Hint
	3.	Solve using inverse matrices.
		A.	(4, -4)	B.	(4, 4)
		C.	(-4, 0)	D.	(-4, 4)
		Hint
	4.	In a sport similar to football, there are two ways to score: by the run or by the pass. Team A scored 244 points, while Team B scored 273 points. Team A scored by the pass 21 times, and by the run 11 times. Team B scored by the pass 27 times, and by the run 6 times. How many points is each score worth?
		A.	pass = 9 pointsrun = 5 points
		B.	pass = 7 pointsrun = 14 points
		C.	pass = 5 pointsrun = 23 points
		D.	pass = 5 pointsrun = 9 points
		Hint
	5.	Which of the following is a matrix equation for the system 5x – 3y =11, –3x + 2y = 7?
		A.
		B.
		C.
		D.
		Hint