BRAINLIEST TO WHO IS RIGHT!        
      
                
     
    
    
    
    1  answer:
            
              
Answer: 
B) 
Reasoning: 
Since X is perpendicular to A and B, that means they are both make a 90 degree angle with X, so they are both parallel.  This is the perpendicular transversal theorem.
 
                                
             
         	
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The way i did that in middle school was plot the points then find the slpoe and work it out from there
        
                    
             
        
        
        
Answer: 
34
Step-by-step explanation: 
(x + 12) + 100 + x = 180
2x + 112 = 180
2x = 68
x = 34
 
        
             
        
        
        
The first one:  
a. $12.00 
b. $23.75 
c. They would receive $1.25  
The second one:  
a. $10.00 
b. $13.27 
c. $3.27 
The third one: 
I don't know I'm sorry, hope the other ones help though! 
 
        
                    
             
        
        
        
Answer:  B (2,1) 
You know what y is (x-1) so you substitute that for y in the other equation.
3x+ ((4)(x-1))=10
3x+4x-4=10
7x=14
x=2
Then put x=2 into y=x-1
y=2-1
y=1
 
        
             
        
        
        
Answer: 
b. Nolinear Positive association
Step-by-step explanation:  
have a nice day! ^w^