Perform the indicated operation or operations. Simplify, if possible.
- 
A. 20
B. 
C. 
D. 
Answer: D
Mathematics
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Use the laws of exponents to simplify each expression using positive exponents only. Assume all variables represent nonzero real numbers.(x-6)-3
A. 
B. x18
C. -x9
D. 
Mathematics
Use the order of operations to simplify the expression.
? 
+ 
? 
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operations.(-17 - 10) - 21
A. 48 B. 14 C. -48 D. -6
Mathematics
Use graphs to find the set.(7, ?) ? [13, ?)
A. [13, ?) B. (7, ?) C. (7, 13] D. (-?, ?)
Mathematics