Answer:
The number of pools clean per hour is 1.5
Step-by-step explanation:
Given as :
The number of pools clean in 8 hours = 12
The number of pools clean in 7.5 hours = 9
Let The number of pools they clean per hours = x
I.e x =  +
 +   
 
Or, x =   
 
Or, x =   
 
∴   x =   
 
I.e x = 1.5 
Hence The number of pools clean per hour is 1.5 Answer 
 
        
             
        
        
        
The answer is 50 degrees
You get this by subtracting 180-130
        
             
        
        
        
Answer:
WASSUP
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Yes
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
(1+25 /100) (1-20/100) (1-50/100)  <1
5/4 x 4/5 x 1/2 <1
Decrease in volume (in percent)
(1+25 /100) (1-20/100) (1-50/100)  x 100
=48.8%