Answer:
For anything you have to ask question, right? How can someone understand if you just show the figure
 
        
             
        
        
        
1 + 3 = 4;
9 x 4 = 36;
60 - 36 = 24;
2 x 24 = 48;
14 + 48 = 62;
-6 + 62 = 56.
        
                    
             
        
        
        
The Length would be 3 
5+5= 10
16-10 =6 / 2 =3
        
             
        
        
        
Answer:
852 students walking to school
Step-by-step explanation:
Lets start with a simple example so you can get it
if 60% of 100 students walk to school that means 
60 students walk to school... right??
so lets simplify it more that means you have multiplied 100 (students) by 60%
or  (note: you can say that 60% is equal to
  (note: you can say that 60% is equal to  )
 )
so the problem told 60% of 1420 students walk to school that means we should
do this:     