Answer:
6 2/7
Step-by-step explanation:
   
 
        
             
        
        
        
Answer:
B 16/y = y/25
C x/16 = 9/x
Step-by-step explanation:
 
        
             
        
        
        
First, we subtract 20% of the amount from x, so the initial cost of the furniture should be 80% of x or 0.80x. Then, due to the sales taxs, this amount should be added with 6.25% of itself. Such that,
                                   A = 0.80x + 0.0625(0.80x)
                                       = 0.85x