Since the area of the walkway is not given, it's substitution in the answer is x. You do have the measurements of the pool though. Area=length times width. 36 times 18 is 648. The area of the concrete is x-648 ft, because the pool is not apart of the concrete. The area of the walkway can be expressed by X-648 ft. 
        
             
        
        
        
Answer:
you will use dy DX for the equation of photosynthesis. make carbon subject of formular, and factorize the final answer
 
        
             
        
        
        
Answer:
c. square.
Step-by-step explanation:
squares have 4 parallel sides so if you cut it in half you will still be parallel
 
        
                    
             
        
        
        
(4,4) are the coordinates of C prime
        
             
        
        
        
Answer:
12x/2 or 52/2
Step-by-step explanation:
Ok, perimeter is length+length+width+width. 12x/2 and 52/2 could are probably the answers.