Answer:
U have selected the correct answer..... Option 3rd is the correct 
 
        
                    
             
        
        
        
The appropriate response is the third one. A Cartesian organize framework is an arrange framework that determines each point exceptionally in a plane by a couple of numerical directions, which are the marked separations to the point from two settled opposite coordinated lines, measured in a similar unit of length. Each reference line is known as an organize pivot or only hub of the framework, and the point where they meet is its birthplace, as a rule at requested combine (0, 0).
        
                    
             
        
        
        
For the zero product property questions it's choices 2 and 3 since they're quadratics factored and set equal to zero. 
for the quadratic formula questions it would be answer choices 2 and 3 also because they're unfactored trinomial quadratic expressions
        
                    
             
        
        
        
Answer:
the correct answer is
D. 80 ft^3
vol. of pyramid = (l× w × h)/3
 = (6×8×5)/3 
 = 80 ft^3