Answer:
b - 9 = 2 I believe would be it
I'm assuming that you meant to add an attachment
but log168 is equal to 2.22530928173
so simply solve the presumed answer choices
The one that equals 2.22530928173 is equivalent to log168
next time please include the attachment
~Travisnator
It's an easy problems. what equations are you trying to find?