Solve the system of equations by graphing.
A. (3, 1)
B. (1, 3)
C. (-1, -3)
D. no solution
Answer: B
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Solve the problem.The length of a rectangular room is 9 feet longer than twice the width. If the room's perimeter is 
what are the room's dimensions?
A. width = 52 ft; length = 122 ft B. width = 26 ft; length = 61 ft C. width = 39 ft; length = 48 ft D. width = 31 ft; length = 71 ft
Find the identical expression for the following.
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A. ?
B. 
C. ?
D. ?
E. ?
Graph both equations using the same set of axes. Graph the equation on the left using a solid line and the function on the right with a dashed line. y = 4x, x = 4y 
A. 
B. 
C. 
D. 
Solve the problem.The material for the bottom of a rectangular box costs three times as much per square foot as the material for the sides and top. Find the greatest capacity such a box can have if the total amount of money available for material is $12.
A. 2 ft3 B. 1 ft3 C. 4 ft3 D. 3 ft3