-9x-5y=12
C) (2, -6)  -18+30=12
        
             
        
        
        
700,000 + 70,000 + 70
is your answer
hope this helps :D
        
                    
             
        
        
        
2 supplementary angles when added together need to equal 180 degrees.
Add:
3x-23 + 2x-12 = 180
Simplify:
5x -35 = 180
Add 35 to both sides:
5x = 215
Divide both sides by 5:
X = 43
Now replace x with 43 in the equation for angle b:
2(43) -12 = 86-12 = 74 degrees
Angle B = 74 degrees
 
        
             
        
        
        
Answer:

Then just plug in the values depending on the bridge you chose I'm pretty sure
also can I get brainliest?
 
        
             
        
        
        
Answer:
p=54 hope this helps
Step-by-step explanation: