Answer: 
Step-by-step explanation:
Given
The area of the square is 
Suppose a is the side length of the square
The area of the square is given by 

So, we can write

length of each side is 
 
        
             
        
        
        
Answer:
kamal needs to buy 84 in of wire.
Step-by-step explanation:
multiply the length value by 12:
if he wants 7 feet, and the store only sells it in inches, then we know what a foot is twelve inches so 12x7=84.
hope this helped! :D <3
 
        
                    
             
        
        
        
Answer:
-15
Step-by-step explanation:
-3 - 2(-6)
-3 -12 
-15
 
        
             
        
        
        
X+5=15
 -5 -5
X=10
Hope this helps!!
        
                    
             
        
        
        
so to find 15% of 54,237, we use this equation: (x/54237) = (15/100) where x is the amount of income tax.
cross multiply: 100x = 813555
divide each side by 100 to isolate x: 8135.55
the truck driver will pay $8135.55