Is there any more information than just that picture? Please tell me
Answer:
Correct Option is : StartFraction 1 Over m Superscript 8 EndFraction
Step-by-step explanation:
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According to law of exponents 
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Using Law of exponents 
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First subtract 3 from 51 which gives you 48, then divide 48 by 3 which gives you the answer of 16.
0.1257 is a terminating decimap