Perform the indicated operation and, if possible, simplify. Assume that all variables represent positive real numbers. -4
- 9
A. -13
B. 22
C. -14
D. -22
Answer: D
Mathematics
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A. 
B. 
C. 3
D. 
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.
A. True B. False
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A. 
B. 
C. 
? 
D. 
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