Answer:
405/14
Step-by-step explanation:
 
        
             
        
        
        
Answer:
3
Step-by-step explanation:

Brainliest would be appreciated :)) 
 
        
                    
             
        
        
        
Answer:
The persons saves 25% by buying one set of six ball instead of two sets of three balls.
Step-by-step explanation:
Cost of 1 set of three balls = 40 cents
Cost of 2 sets of three balls = 40 cents × 2 = 80 cents
Cost of 1 set of six balls = 60 cents
Percent dose he save by buying one set of six ball instead of two sets of three balls :
=
The persons saves 25% by buying one set of six ball instead of two sets of three balls.
 
        
             
        
        
        
Tricky question. This isn't a ratio question even though it seems like one. 
First divide 7 by 4.

With more men, the hours taken to repair a road will be even shorter.
So next divide 6 by 1.75.

Answer : It'll take 3.43 hours to do the job if they work at the same rate.
Hope this helps. - M
 
        
        
        
45/100 = 9/20
Work: divide by 5