Answer
$\ln r$ - $\ln 3$ - $\ln s$
Work Step by Step
$Expand$ $the$ $expression$:
$\ln \frac{r}{3s}$
Apply the Second Law of Logarithms
$\ln \frac{r}{3s}$ = $\ln r$ - $\ln 3s$
Apply the First Law of Logarithms for $\ln 3s$
$\ln (3\times s)$ = $\ln 3$ +$\ln s$
$\ln r$ - $\ln 3s$ = $\ln r$ - ($\ln 3$ +$\ln s$)
$\ln r$ - ($\ln 3$ +$\ln s$) = $\ln r$ - $\ln 3$ - $\ln s$
