Transformations of Logarithmic Functions

Hey guys

I have a question about transformations and the laws of logarithms.

The question is:

"Given y=1/5log(9x-36)^15-13 (the log has a base of 3, not 10. I don't know how to write that in clearly, so I hope it makes sense)

Apply the laws of logarithms to change the form of the equation. Graph the function by first stating the basic function and then describe each transformation applied in order. Specifically describe what happens to the domain, range, asymptotes, x-intercept, and vertical stretch or compression."

I am fine with graphing the transformation, I just don't understand exactly how to "apply the laws of logarithms to change the form of the equation"

Can anybody help me out a bit?

Thanks a lot