The answer is 9, hope this helped <3
        
             
        
        
        
Answer:
0.064
Step-by-step explanation:
   25000(1-0.8)^8
= 25000(0.2)^8
= 0.064
 
        
                    
             
        
        
        
Let x =  hours of service.
Let y = total charges for x hours
The fixed charge is $20.
The charge per hour is $20.
Brock's charges for x hours is
y = 40 + 20x
This is a straight line with slope = 20 and y-intercept = 40.
The correct graph is W.
Answer: W
 
        
        
        
Answer:
B. Square root
Step-by-step explanation:
using distance formula:
x = √z^2 - y^2
y = √z^2 - x^2 
=> z = √x^2 + y^2