Answer:
Did you just start today? It looks like you're new here. I'm also new here. 
Step-by-step explanation:
I don't really know what to do either.
From what I've done so far, I don't understand it.
Sorry.
 
        
             
        
        
        
Answer: The radius of the new water tower is approximately 21 ft^3 
Step-by-step explanation:
   So we know the volume  of the Water Tower is 66840 ft^3   and the new one's volume will hold 3/5 as much.  so you will multiply  66840 by 3/5 to find the volume of the new one.
66840 * 3/5 = 40104   so the new water tower will hold 40104 cubic feet of water. 
Now to find the radius we will use the formula  v= 4/3 r^3
r^3 
40104 =  4/3 *  * r^3
* r^3 
  40104=  4.1887* r^3
r= 21  
         
 
        
             
        
        
        
Top right would be rhombus
        
                    
             
        
        
        
The answer would be (x+3)^2+4
        
             
        
        
        
Answer:
14.4222
Step-by-step explanation:
Distance between two points = √(x₂ – x₁)² + (y₂ – y₁)²
Distance between two points = √(6 – -2)² + (-5 – 7)²
√(6 – -2)² + (-5 – 7)²
√8² + (-12)²
√64 + 144
√208
14.4222
I hope this helps