Use the change of base rule to find the logarithm to four decimal places. (2 points) log base nine of 0.877.

Alright, this question is a bit confusing, but hopefully this will help:

Remember that Log(a) B = C is actually a^C = B. (Just imagine "a" as the little number that is first written after "Log.") 

So here, I think Log(9) 0.877 = "x." And you want the value "x."  

9^x = 0.877, which is all I've got, cause I don't really know what this "change of base rule" is. But I hope I helped.

If I understood the question right I believe the answer should be 

㏒₉(0.877) = -0.05973

hope this helped