Solve the problem.The figure shows two intersections, labeled A and B, that involve one-way streets. The numbers and variables represent the average traffic flow rates measured in vehicles per hour. For example, an average of 800 vehicles per hour enter intersection A from the west, whereas 450 vehicles per hour enter this intersection from the north. A stoplight will control the unknown traffic flow denoted by the variables x and y. Use the fact that the number of vehicles entering an intersection must equal the number leaving to determine x and y.
A. x= 600, y = 650
B. x= 450, y = 350
C. x= 650, y = 600
D. x= 800, y = 700
Answer: A
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Find the volume of the following right prism. Round to the nearest tenth unless indicated otherwise.
A. 10,400 in3 B. 10,600 in3 C. 21,200 in3 D. 21,100 in3
Solve the problem.A weighted voting system has 100 players. How many sequential coalitions in which P50 is listed first are possible?
A. 
B. 50!
C. 100! - 1
D. 99!
E. none of these
Graph the function. Give the domain and range.f(x) = log5(x - 1)
A. domain: (-?, ?); range: (-1, ?)
B. domain: (0, ?); range: (-?, ?)
C. domain: (-?, ?); range: (0, ?)
D. domain: (1, ?); range: (-?, ?)
Find an equation for the conic. If the conic is a parabola, assume that the vertex is at the origin. If the conic is an ellipse or hyperbola, assume that it is centered at the origin.Vertical major axis of length 6 and e = 
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1