<h2>
Answer: </h2>
<u>Number lines</u> <u> Inequality</u>
First ⇔ 
Second ⇔ 
Third ⇔ 
Fourth ⇔ 
<h2>
Step-by-step explanation:</h2>
Inequality 1. 
Multiply both sides by 9 , we get

Divide both sides by 7, we get
which is shown by the fourth number line.
Inequality 2. 
Multiply both sides by 4 , we get

Divide both sides by -6, we get
which is shown by the second number line.
Inequality 3. 
Multiply both sides by 4 , we get
which is shown by the first number line.
Inequality 2. 
Multiply both sides by 3 , we get

Divide both sides by 2, we get
which is shown by the third number line.