Ratio from rings to bracelets: 5:7
Let m=shaded square and y= clear square
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X=3
Explanation: 
A straight line equals 180°, and they give you the one angle of 56°, so you know 56+ the other equation has to equal 180 
56+4x+112=180 
168+4x=180
Subtract 168 from both sides 
4x=12 
Divide 4 from both sides 
X=3
You can check by filling it in. 
56+4*3+112=
12+56+112=180
        
             
        
        
        
A)4/13 would be the larger number since if you were to try to add them, 4/13 = 40/130 and 3/10 = 39/130, 40/130 > 39/130
B) A rational number between them would be 39.5/130.
 
        
             
        
        
        
Give The Rest of the question