The scores on a 30-point multiple-choice exam are given in the following frequency table:
The third quartile on the exam is
A. 27.5.
B. 28.
C. 26.5.
D. 27.
E. none of these
Answer: B
Mathematics
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Graph the system of inequalities.y > 2x ? 4
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Find the value of k so that the graph of 25y + kx = 4 and the line containing the points (5, -8) and (2, 4) are perpendicular.
A. k = 100 B. k = -6.25 C. k = 6.25 D. k = -100
Mathematics
Decide whether the slope is positive, negative, zero, or undefined.
A. Zero B. Negative C. Positive D. Undefined
Mathematics
Simplify the expression by combining like terms, if possible.-3y + 7 - 5 + 1 + y - 3
A. -4y + 1 B. -4y C. -2y D. -2y - 1
Mathematics