1 answer:
            
              
              
                
                
Answer:
x=45.5
Step-by-step explanation:
sum of angles of a quadrilateral is 360°
so 3x - 11+x+8+x-8+2x+7+x=360°
or 8x-4=360
or, x=364÷8
hence 
 x=45.5
 
                                
             
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Answer: 
|−∣=7
Explanation: 
∣−∣
= |(-2-5)|
= |-2-5|
= | -7|=7
        
             
        
        
        
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Methane(CH4)
Ethane(C2H6)
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Jul 3, 2018
http://www.gcesystems.com › what-...
        
             
        
        
        
B. 'bar(RS) 
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