1. The problem is to solve the inequality $$12 \geq n + 30$$ for $n$. 2. To isolate $n$, subtract 30 from both sides: $$12 - 30 \geq n + 30 - 30$$ 3. Simplify both sides: $$-18 \geq n$$ 4. This means $n$ is less than or equal to $-18$. 5. Therefore, the correct option is: $$-18 \geq n$$