Answer:
that answer u put is correct and r u in K12 to lol
 
        
             
        
        
        
Whats the problem? just substitute. For example: 3x-5 if x=4 so what you do is this; 3(4)-5=7
        
             
        
        
        
210 because 7th graders washed 12 cars, 8th graders washed 14 cars, 6th graders washed 16 cars. Added all together and multiplied by 5, it equals 210
        
             
        
        
        
Answer:
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Step-by-step explanation:
 
        
             
        
        
        
Answer:
x = -9
Step-by-step explanation:
ANGLES IN A TRIANGLE ADD UP TO 180°
50° + 80° = 130° 
180° - 130° = 50
x+59 = 50
x = -9