Answer
$r\leq35$
Work Step by Step
$-\frac{r}{5}+1\geq-6\longrightarrow$ subtract 1 from each side
$-\frac{r}{5}+1-1\geq-6-1\longrightarrow$ subtract
$-\frac{r}{5}\geq-7\longrightarrow$ multiply each side by -5; reverse the inequality
$-\frac{r}{5}\times-5\leq-7\times-5\longrightarrow$ multiply
$r\leq35$