Find the difference.
- 
A. 1
B. - 
C. 
D. - 
Answer: C
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Which of the following does not occur in tessellations? ?
A. ?A regular polygon tessellates about a point. B. ?An equilateral triangle tessellates about a point. C. ?A square tessellates about a point because 4 rotations of 90? completes the tessellation. D. ?A regular hexagon tessellates about a point because 3 rotations of 120? completes the tessellation. E. ?There are no other regular polygons with sides greater than 6 which tessellate.
Solve the inequality. Graph the solution set, and state the solution set in interval notation.
< 2
A. (-6, 0)
B. (-?, -6) ? (0, ?)
C. (-6, 6)
D. (0, 6)
Simplify the expression. Assume that all variables represent nonnegative real numbers. y
+ 
- 4y
A. (2x - y)(2x + y)
B. (3x - y)2
C. (3x - y)(3x + y)
D. (2x - y)2
Write the percent as a fraction in simplest form.62.5%
A. 
B. 
C. 
D. 