Answer: -1.06 if 1/8 is supposed to be the base -0.95 if 9 is supposed to be the base
Step-by-step explanation: We can use the change base formula where
log base x of y = log(y)/log(x) (where log is base 10 so your calculator can do it)
if the base is 1/8 then we should do log(9)/log(1/8) = -1.06 (rounded to two decimals)
if the base is 9 then we should do log(1/8)/log(9) = -0.95
