Evaluate the expression.
-2
A. -9
B. 
C. 9
D. 
Answer: C
Mathematics
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Find the area.
A. 16 in.2 B. 55 in.2 C. 27.5 in.2 D. 22.5 in.2
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Solve the problem.All 30 of the students in a mathematics class attended class on Monday. On Tuesday only 19 students attended. What was the percent of decrease?
A. 42.1% B. 63.3% C. 36.7% D. 57.9%
Mathematics
Solve the problem.The profit made when t units are sold, t > 0, is given by 
Determine the number of units to be sold in order for P < 0 (a loss is taken).
A. t > 0 B. t = 12 units or t = 17 units C. t < 12 units or t > 17 units D. 12 units < t < 17 units
Mathematics
Solve using matrices. -5x - y - 3z = -455x + 4y - 7z = -21 -7x - 6y + z = -53
A. (2, 8, 9) B. (-2, 8, 4) C. (2, 9, 8) D. (4, 8, -2)
Mathematics