To round off to 10, the difference should range from 5 to 14. If the difference between two numbers is from 5 to 14, they all are rounded to 10.
Example:
 (near to 10)
 (near to 10)



 
        
             
        
        
        
No, to be a square each side has to be equal. but all squares are rectangles.
        
                    
             
        
        
        
Part A:
Six Tents Holds 42 People
Nine Tents Holds 63 People
10 Tents Holds 70 People
Part B: 
Number of tents|||Number of people
1                          |||7
6                         |||42
9                         |||63
10                        |||70
Part C:
Tents=x
1x=7 people
 
        
                    
             
        
        
        
45x20x18=16,200
350x9=3150
total = 19,350
        
             
        
        
        
0.94 divided by 5 is equal to .188