Answer:
EWWWWWWWWWWWWW UR BI???!!
Step-by-step explanation:
 
        
                    
             
        
        
        
solve for y
2x−4y=10  
-2x       -2x      subtract -2x from both sides
-4y = -2x +10
-4            -4    Divide both sides by -4 (coefficient on y) 
y = -2/-4x  + 10/-4
y = 1/2x - 5/2
the slope is the number on the x (coefficient) 
and its 1/2
 
        
                    
             
        
        
        
Let us assume the width of the rectangle = x
Then
The length of the rectangle = 2x
The perimeter of the rectangle = 24 inches
We know the formula of the perimeter of a rectangle is
Perimeter = 2 (length + Breadth)
24 = 2 (2x + x)
24 = 2 * 3x
24 = 6x
x = 24/6
   = 4
So the width of the rectangle = 4 inches
length of the rectangle = 2x
                                     = 2 * 4 inches
                                     = 8 inches
Now 
The Area of the rectangle = Width * Length
                                          = 4 * 8 inches^2
                                          = 32 inches ^2
So the area of the rectangle is 32 square inches. I hope i have helped you.