The problem asks us to solve the inequality $n + 15 > 18$ and graph the solution on a number line.

1. Problem Description

The problem asks us to solve the inequality $n + 15 > 18$ and graph the solution on a number line.

2. Solution Steps

To solve the inequality $n + 15 > 18$, we need to isolate $n$ on one side of the inequality. We can do this by subtracting 15 from both sides of the inequality:

$n + 15 - 15 > 18 - 15$

$n > 3$

This means that $n$ is greater than

3. Since $n$ is strictly greater than 3, we will represent this on the number line with an open circle at 3 and an arrow extending to the right, indicating all numbers greater than

3.

3. Final Answer

The solution to the inequality $n + 15 > 18$ is $n > 3$. On the number line, we would plot an open circle at 3, with an arrow extending to the right towards positive infinity.