<span>Find the area of two sides (Length*Height)*2 sidesFind the area of adjacent sides (Width*Height)*2 sidesFind the area of ends (Length*Width)*2 ends<span>Add the three areas together to find the surface area</span></span>
        
                    
             
        
        
        
Answer:
(8, 6)=(x, y) | (6, 5)= (y, x)
Step-by-step explanation:
Start at the x, and find the value. Next, find the value of y.
You already know the value for y is 6, so next find the value of x, which is 5.
 
        
             
        
        
        
16 - 7 is 9
9 x 2 is 18
His weekly allowance is 18