300,000,000+9,000,000+90,000+9,000+900+90
        
             
        
        
        
Answer:
the mixed fraction 9 3/4 means there are 9 4/4 s and one 3/4all togather there are 39/4 divid this by 3/4 to find the no of shifts. 39/4 ÷(3/4)
=39/4. ×4/3=13
13shifts
 
        
             
        
        
        
It is not A,B, or D.
so it has to be C. wish I knew this when taking test.
let me know if it was right. I hope this is somewhat helpful. 
 
        
                    
             
        
        
        
So we can subsitute since they all equatl zero
1/2+n=0=2/3+n
1/2+n=2/3+n
subtract n from both sides
1/2=2/3
false statement
therefor there is no solution
        
             
        
        
        
Answer:
X=9
Step-by-step explanation: