Solve the equation or inequality.7x + 5 > 6x + 8 or 1 - x > -8
A. (-?, ?)
B. ?
C. (3, 9)
D. (-?,3) ? (9, ?)
Answer: A
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Use the graph to find a ? > 0 such that for all x, 0 < 
< ? ? 
< ?.
A. -0.05 B. 0.05 C. 12 D. 0.5
Solve the problem.An election is held among four candidates (A, B, C, and D). Using a voting method we will call X, the winner of the election is candidate A. However, candidate D has more than 50% of the possible votes. Based on this information, we can say that voting method X violates the
A. majority criterion. B. independence of irrelevant alternatives criterion. C. Condorcet criterion. D. monotonicity criterion. E. none of these
Simplify.21 ÷ [3 ? (-14 ÷ (-2))]
A. -7 B. 1 C. -3 D. -1
Use a graphing calculator to solve the system. If 
is the solution to the system, give the value of 
.
?
?
A. 10
B. 9
C. 13
D. 12
E. 23