Answer
$ n\leq -3$
The graph is shown below.
Work Step by Step
The given inequality is
$\Rightarrow \frac{n}{-3}\geq 1$
Multiply each side by $-3$. Reverse the inequality symbol.
$\Rightarrow -3\cdot (\frac{n}{-3})\leq -3\cdot 1$
Simplify.
$\Rightarrow n\leq -3$
Hence, the solution is $ n\leq -3$.
Use a close circle because $-3$ is a solution.
Shade the number line on the left side.
