Refer to the weighted voting system 
and the Banzhaf definition of power. (The five players will be called P1, P2, P3, P4, and P5.)The number of coalitions is
A. 120.
B. 15.
C. 31.
D. 63.
E. none of these
Answer: C
Mathematics
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A. 3(z - 4) B. 4(z - 3) C. 3(z + 4) D. 3(z - 12)
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Solve the problem.A square has an area of 49 square inches. If the same amount is added to the length and removed from the width, the resulting rectangle has an area of 45 square inches. Find the dimensions of the rectangle.
A. 3 in. by 4 in. B. 5 in. by 9 in. C. 4 in. by 9 in. D. 5 in. by 10 in.
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Graph the system of inequalities.9x + y ? 99x + y ? 0 
A. 
B. No solution
C. 
D. 
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Graph the ellipse.
+ 
= 1
A. 
B. 
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