Combine like terms.-3m9 - 2m9
A. -5m9
B. Can't be simplified
C. -5m18
D. -45m
Answer: A
Mathematics
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Using the horizontal-line test, determine whether the function is one-to-one.
A. one-to-one B. not one-to-one
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Divide.
A. 
+ 
- 
B. 
+ 
- 
C. 
+ 
- 
D. 
+ 4 - 
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Solve the problem.Richard works for a company that pays $26 per hour for the first forty hours and $39 per hour for each hour in the week worked above the 40 hours. If he earned $1664 this week, how many overtime hours did he work?
A. 56 hr B. 24 hr C. 15 hr D. 16 hr
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Factor completely. If the polynomial cannot be factored, say it is prime.x9 + 1
A. (x - 1)(x2 + x + 1)(x6 + x3 + 1) B. (x + 1)(x2 - x + 1)(x6 - x3 + 1) C. (x3 + 1)(x6 - x3 + 1) D. (x - 1)(x + 1)(x6 - x3 + 1)
Mathematics