A) \[-30\]
B) \[-15\]
C) \[15\]
D) \[-21\]
Correct Answer: D
Solution :
Using the correct symbols, we have Given expression\[=12-12\times 28\div 7+15\] \[=12-12\times 4+15=12-48+15=27-48\] \[=-\,21.\]
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