Answer:
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Step-by-step explanation:
 
        
             
        
        
        
Answer:
x = 13
Step-by-step explanation:

Take the square root of both sides

 
        
             
        
        
        
Answer:
D. Multiplication property of equality
Step-by-step explanation:
5 is multiplied to both sides of the equation, resulting to x = -10
 
        
             
        
        
        
Answer: -2v-20
Step-by-step explanation: -2 times v is -2v 
and -10 times -2 is -20.
 
        
                    
             
        
        
        
The perimeter is 86 m.
When you add the 18 with the 11, you get the length of the bottom side, which is 29. When you add the nine and the 6, you get the length of the left side, which is 15. Now add everything together.
18 + 6 + 11 + 9 + 29 + 15 = 86 m
Hope I helped. Good luck!! : )