Factor out a factor with a negative coefficient.-2x4 + 6x
A. -2x(x3 - 3)
B. 2(x4 + 3x)
C. 2x(x3 - 3x)
D. -2x(x3 + 3)
Answer: A
Mathematics
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The following circle graph displays Chris and Mary Smith's monthly $2900 family budget. Use the circle graph to answer the question. 
What category takes the largest amount of the budget?
A. transportation B. charitable contributions C. food D. rent
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Refer to the weighted voting system 
and the Banzhaf definition of power. (The four players are P1, P2, P3, and P4.)The number of winning coalitions is
A. 8. B. 24. C. 7. D. 15. E. none of these
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Solve the system.
A. x = 3, y = -2, z = 5 B. x = -1, y = 2, z = -3 C. x = 0, y = 4, z = 2 D. x = 1, y = 2, z = 3
Mathematics