Answer:
120cm
Step-by-step explanation:
168/7=24
24x5=120cm
 
        
             
        
        
        
Here is how I did it. I hope this helps!
 
        
        
        
5 subtract 1 and one eighth is 3 and seven eighths 
3 7/8
        
             
        
        
        
-14>2x>18
Hope this helps!
        
             
        
        
        
x - y = 16
x^2 + x^2 = 130
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x^2 - y^2 = 256
+(x^2 + y^2 = 130)
2x^2 = 386
x^2 = 193
x = <span>13.892 (3DP)
----
</span>x - y = 16
13.892 - y = 16
-y = 2.108
y = -2.108
The numbers are: 13.892 and -2.108