Evaluate the expression.2 ? 9 - 7

A. 25
B. 4
C. 126
D. 11


Answer: D

Mathematics

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Determine whether the specified paradox occurs.A city has 204 police officers to be apportioned among 4 precincts based on the population of each precinct. The populations are given in the following table. Does the Alabama paradox occur using Hamilton's method if the number of police officers is increased from 204 to 205?

A. Yes B. No

Mathematics

A test consists of twelve true-false questions (of which each question has exactly one correct answer). A student guesses at all twelve questions. What is the probability that he gets exactly five of these guessed questions correct?

What will be an ideal response?

Mathematics

Find all real solutions of the equation.

Mathematics

Solve the problem. Round to the nearest tenth if necessary.Last year, Maria earned $377 per week. This year, her salary increased to  per week. What is the percent of increase?

A.

6.7%

B. 7.2%
C.
92.8%

D.
93.3%

Mathematics