Chapter 7 - Exponential and Logarithmic Functions - 7-4 Properties of Logarithms - Practice and Problem-Solving Exercises - Page 467: 71

$\dfrac{\log_{10}{3.3}}{\log_{10}{9}}$ or $\dfrac{\log{3.3}}{\log9}$

Recall the change of base formula (pg. 464): $\log_{b}{m}=\frac{\log_{c}{m}}{\log_{c}{b}}$ Applying this formula to our equation ($b=9, m=3.3, c=10$), we get: $\log_9{3.3}=\dfrac{\log_{10}{3.3}}{\log_{10}{9}}$