Area of rectangular barn = 200 (sqft)
Length= Width + 10 
Length x Width = 200 ==> (Width+10)Width = 200
Width² +10Width -200 = 0===> width = 10  ===> length = 20
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:











 
        
             
        
        
        
3 x 5 = 15 because the opposite of dividing is multiplying
        
             
        
        
        
Answer:
ii
Step-by-step explanation:
A c A u B
B c A 
Aç n Bc = Ac
What do you need to be explainer
 
        
             
        
        
        
Thirteen plus seven is twenty. One fourth of twenty is five.
The answer is five.