Answer:
60%
Step-by-step explanation:
Formula:
Percentage decrease = (amount of decrease)/(original price)
✪ Solve ✪ 
3.85 - 1.54/3.85 x 100
2.31/3.85 x 100 = 60%
Hence, Percent decrease is 60%
<em>~Lenvy</em>
 
        
             
        
        
        
Hello there,
First you need to add together the numbers.
4+5+9 = 18
Divide the total by this,
180 / 18 = 10
Multiply each number by 10.
40:50:90.
Hope This Helps You!
Good Luck Studying :)
        
                    
             
        
        
        
-1 is the answer to your question
        
                    
             
        
        
        
Step-by-step explanation:
4.
⇒ 
⇒ 
⇒ 
⇒ 
5. 
⇒ 
⇒ 
As we know the radius and slant height, we can use Pythagoras' Theorem to find the perpendicular height. 
⇒ 
⇒ 
⇒ 
⇒ 
Now substitute this into the volume formula.
⇒ 
⇒ 
⇒ 
6. 
⇒ 
⇒ 
⇒ 
7.
⇒ 
⇒ 
⇒ 