You're answer is B.) 0.7 because both the fraction and the decimal read seven tenths.
        
                    
             
        
        
        
 The answer would most commonly  be C only because a square is 360 degrees and the surface area would be a 6th of that which is 60 then i multiplied it by 4 because of the four corners signaling the height and or length of the 2D figure square which gives me C.
        
             
        
        
        
Substitute 136.5 for y.




Compare this equation with 
a = 1, b = - 191, c = 8190
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x = 126 or x = 65
Hence, the points on the curve are (65, 136.5) and (126, 136.5).
The width of the air space is the distance between these points.
Width = 
= 
= 126 - 65
= 61
Hence, width of the air space is 61m.
 
        
             
        
        
        
Answer:
3.16
Step-by-step explanation:
 
        
                    
             
        
        
        
9514 1404 393
Answer:
   A.  (4, 12)
Step-by-step explanation:
Adding the second equation to twice the first will eliminate y.
   2(10x +2y) +(3x -4y) = 2(64) +(-36)
   23x = 92 . . . . . . . . simplify
   x = 4 . . . . . . . . . divide by 23
This value matches choice A: (4, 12).