Simplify the expression.( - )

A. 20
B. 10
C. 5 - 5
D. 15 - 


Answer: B

Mathematics

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Solve the problem.An election is held for president of the United States. Three candidates are running: a Democrat, a Republican, and an Independent. A certain voter prefers the Independent candidate over the other two, but realizing (because of all the pre-election polls) the race is going to be a close race between the Democrat and the Republican and that the Independent doesn't have a chance, he votes instead for his second choice (his preference between the Democrat and the Republican). This is an example of

A. the monotonicity criterion. B. insincere voting. C. the majority criterion. D. the independence of irrelevant alternatives criterion. E. none of these

Mathematics

Find the x-intercept and the y-intercept of the graph of the equation. Do not graph the equation.-3x + y = 3

A. x-intercept = -1; y-intercept = 0 B. x-intercept = -1; y-intercept = 3 C. x-intercept = -2; y-intercept = -3 D. x-intercept = 3; y-intercept = -1

Mathematics

Solve the equation. = 3

A.
B. {7, 13}
C. {-13, 7}
D.

Mathematics

Subtract and simplify. Write the answer as a mixed number as needed.38 - 25

A. 12
B. 12
C. 11
D. 13

Mathematics