Answer:
The answer is c because there is not suppose to be a negative number
Step-by-step explanation:
 
        
             
        
        
        
Answer:
4
Step-by-step explanation:
 
        
                    
             
        
        
        
See description in the pic.
 
        
        
        
Answer:
9
Step-by-step explanation:
By joining N to L, you will have a right angled triangle which is right angle at N. Then r^2+36=(3+x)^2. r=9/2. PQ=2r=9
 
        
             
        
        
        
Answer: 37%
Step-by-step explanation: