Answer:
It would be the 4th one and the last one I think 
Step-by-step explanation:
 
        
                    
             
        
        
        
See picture for rough graph
 
        
        
        
 15<span>√2 is what I got for the answer.</span>
        
             
        
        
        
Answer:
C. x ≥ -4
General Formulas and Concepts:
<u>Pre-Algebra</u>
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtraction Property of Equality
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify</em>
-10x ≤ 40
<u>Step 2: Solve for </u><em><u>x</u></em>
- [Division Property of Equality] Divide -10 on both sides:                               x ≥ -4