Solve by the method of your choice.5x2 - 75 = 0
A. 
B. ±
C. ±37.5
D. ±15
Answer: B
Mathematics
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Evaluate 
when r = -1 and s = -2.
?
A. 14 B. -56 C. 38,416 D. -14 E. -112
Mathematics
The graph shows sales in thousands of dollars for 1989 and 1990. Use it to answer the question. 
What month in 2007 had the lowest sales?
A. Month 12 B. Month 5 C. Month 2 D. Month 3
Mathematics
Solve and check.6.9 = 10 - x
A. x = 2.6 B. x = 3.1 C. x = 16.4 D. x = 16.9
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics