Simplify the expression by using the order of operations.14 ? 
- 15 ? 
A. 399
B. 1029
C. 231
D. 21
Answer: D
Mathematics
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A. 
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C. 9
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A. 
; 
B. - 
; 
C. 
; 
D. - 
; 
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A. 
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