10 to the third power.
Hope I helped :)
        
                    
             
        
        
        
Step-by-step explanation:
the picture includes the answer and work
I plugged in 2 for x
the equations that got the same answer, I put together
 
        
             
        
        
        
The fourth graph or D (the one in the bottom right corner) this is because a pyramid consists of four triangles and one square at the bottom.
Correct me if wrong
Have a nice day :D
~Hackermcpe 
        
                    
             
        
        
        
Addition, I would use the principles of addition.