Hello!
The answer is:
- First inequality: The fourth number line.
- Second inequality: The second number line.
- Third inequality: The first number line.
- Fourth inequality: The third number line.
Why?
To be able to match each inequality to the number line that represents its solution, we need to solve each inequality.
So, solving we have:
- First inequality:

Therefore, the solution for the first inequality is the x greaters than 6, and the solution matchs with the fourth number line.
- Second inequality:

Therefore, the solution for the first inequality is the x less than 6, and the solution matchs with the second number line.
- Third inequality:

Therefore, the solution for the first inequality is the x less or equals than 6, and the solution matchs with the first number line.
- Fourth inequality:

Therefore, the solution for the first inequality is the x greater than 6, and the solution matchs with the third number line.
Have a nice day!