Simplify the expression using the order of operations.15 - (-6)2
A. 27
B. 51
C. -21
D. 21
Answer: C
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Solve the problem.Given the following voter profile, determine which candidate (if any) is a Condorcet Candidate and who will be selected using the Borda Method. Does the Borda Method violate the Condorcet criterion for the voter profile? 
A. a, a; no B. a, b; yes C. b, b; no D. b, a; yes
Find y '.y = 
A. - 
+ 2x
B. 
+ 2x
C. - 
- 2x
D. - 
- 2x
Use a formula to solve the problem.Find the area of a triangle with height 9 m and base 11 m.
A. 49.5 m2 B. 198 m2 C. 10 m2 D. 99 m2
Solve the problem.The area of a rectangular wall in a classroom is 210 square feet. Its length is 9 feet shorter than three times its width. Find the length and width of the wall of the classroom.
A. width = 10 ft; length = 21 ft B. width = 10 ft; length = 19 ft C. width = 10 ft; length = 39 ft D. width = 10 ft; length = 37 ft