Answer:
   320 cubic feet
Step-by-step explanation:
The volume is proportional to the product of the area of the base and the height of the pyramid. When the dimensions of the base are doubled, the area is multiplied by 2² = 4, hence the volume of the pyramid will be multiplied by 4.
   4 × (80 ft³) = 320 ft³
The new volume of the pyramid is 320 cubic feet.
 
        
             
        
        
        
Answer:
The rate of change is -5
The initial value is 25
Step-by-step explanation:
Since, this is a linear relation
so, we can select any two points and find equation of line 
points are (1,20) and (3,10)
so, 


now, we can find slope

now, we can plug values


now, we can use point slope form of line 

now, we can plug values

now, we can solve for y

we know that 
slope is the rate of change 
So, the rate of change is -5
For finding initial value , we can plug x=0 and find y


So, initial value is 25
 
        
             
        
        
        
Answer:
200
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
1
Step-by-step explanation:
GCF
 
        
             
        
        
        
One expression could be three x to the power of two. Let me know if that's right :)