FOLLOW ME FOR CLEARING YOUR NEXT DOUBT 
 
        
                    
             
        
        
        
Answer:
Rate = 0.7%
Step-by-step explanation:
Rate = Interest / (principal x time)
rate = 12.83 / ((550) x 12/4)
rate = 12.83 / (550 x 3)
rate = 12.83 / 1650
rate = 0.007
rate = 0.7%
 
        
             
        
        
        
Answer:
9
Step-by-step explanation:
To solve, we can first cross multiply 
28/63=4/x 
28*x=63*4
28x=252 
Since we are trying to find x(the missing number), we need to get x by itself. x is being multiplied by 28. To undo this, divide both sides by 28. This will cancel out 28 and leave x by itself. 
28x/28=252/28 
x=9 
So, the missing number is 9 
28/63=4/9
 
        
             
        
        
        
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