1.	Use substitution to solve the system of equations given below. y = 2x 5x - y = -24
		A.	no solution	B.	(-4, -8)
		C.	infinitely many solutions	D.	(-8, -16)
		Hint
	2.	Use substitution to solve the system of equations. 5x + 5y = -30 2x - y = 15
		A.	no solution	B.	(3, -9)
		C.	infinitely many solutions	D.	(21, 27)
		Hint
	3.	Students from the local high school are selling tickets to the town's annual carnival. Adult admission is $5.00 and child admission is $2.50. Two hours after the carnival opened its first day, 440 tickets had been sold totaling $1900. How many adults and how many children entered the carnival during the first two hours it was open?
		A.	320 adults, 120 children
		B.	293 adults, 147 children
		C.	380 adults, 760 children
		D.	220 adults, 220 children
		Hint
	4.	Brenda and Amparo left their homes for their morning runs at the same time. Brenda can run a 10-minute mile and Amparo can run a 12-minute mile. Combined, they ran 15 miles in a total of 2 hours and 42 minutes (162 minutes). How many miles did each woman run?
		A.	Brenda ran 10 miles; Amparo ran 5 miles	B.	Brenda ran 8 miles; Amparo ran 7 miles
		C.	Brenda ran 11 miles; Amparo ran 4 miles.	D.	Brenda ran 9 miles; Amparo ran 6 miles
		Hint
	5.	Use substitution to solve the system of equations given by y = and 28x – 32y = -8.
		A.	no solution	B.	(1, 1)
		C.	(2, 2)	D.	infinitely many solutions
		Hint