Find the sum.
A. -14
B. -21
C. -25
D. -11
E. -45
Answer: C
Mathematics
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Solve the problem.What is the cost of lighting a 500-watt outdoor light for 8 hours, if electricity costs 7.5¢ per kilowatt-hour?
A. 45 cents B. 60 cents C. 30 cents D. 67 cents
Mathematics
Solve the problem.The library is to be given 6 books as a gift. The books will be selected from a list of 23 titles. If each book selected must have a different title, how many possible selections are there?
A. 148,035,889 B. 6,436,343 C. 72,681,840 D. 100,947
Mathematics
Provide an appropriate response.Find ? to the nearest ten-thousandth of a radian if sin ? = 0.5107.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Graph the hyperbola.
- 
= 1
A. 
B. 
C. 
D. 
Mathematics