3. Suppose logb2= 0.25622, logb5= 0.78469, and logb7 = 0.97256. Withought solving for b, find the value for each of the following. If it is not possible to get a value, answer with "not possible" . Round answers to 5 decimal places   (a) logb128= (b) logb(5/7) =  (c) logb70=

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