Factor completely.175x2 - 70x + 7
A. 7(25x2 - 10x + 1)
B. (35x - 7)(5x - 1)
C. 7(5x - 1)2
D. 7(5x + 1)(5x - 1)
Answer: C
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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.)What is the weight of the coalition {P2, P3, P4}?
A. 9 B. 10 C. 12 D. 6 E. none of these
Factor the trinomial containing two variables.u2 - 3uv - 40v2
A. (u - 5v)(u + 8v) B. (u - 5v)(u + v) C. (u - v)(u + 8v) D. (u + 5v)(u - 8v)
Graph the hyperbola.
- 
= 1
A. 
B. 
C. 
D. 
Solve the problem.The radiator in a certain make of car needs to contain 
of 40% antifreeze. The radiator now contains 
of 20% antifreeze. How many liters of this solution must be drained and replaced with 100% antifreeze to get the desired strength?
A. 15.0 L B. 24 L C. 20.0 L D. 30 L