25 x 13 = 325
20x 8 = 160
325-160 = 165 square feet
 answer is A
 
        
                    
             
        
        
        
Step-by-step explanation:
R=2m
A=πr²
A = 3.142*2*2
 =12.568 m2
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
we know that
The perimeter of rectangle is equal to

In this problem we have


substitute in the formula and solve for L

simplify


 
        
             
        
        
        
Answer:
No
Step-by-step explanation:
Substitute by x = 2 and y = - 1
You will get 2*2 + (-1) = 3 not 5 
Then it doesn't lie