Answer:
Three equivalent expressions are -3(5-2x), 6x-15, and 3(2x-5).
Step-by-step explanation:
They are equivalent because they equal the same value for x and make the same answer.
 
        
             
        
        
        
Answer:
16.3420
Step-by-step explanation:
here is what I got
 
        
                    
             
        
        
        
Answer:
umm
Step-by-step explanation:
 
        
             
        
        
        
Step-by-step explanation:
If you were asking what is the 3/4 the area of circle with radius 4 I can answer this. 
The area of a circle with radius 4 is π4 ^2=16π
3/4*16π= 12π, thus your answer.
 
        
             
        
        
        
I am not sure, but this is what I got:
 <span>Pipe ALONE = 18 hours 
Pipe ALONE in 1 hour = 1/18 of the pool 
Hose ALONE in 1 hour = 1/25 of the pool 
TOGETHER in 1 HOUR = 1/18 +1/25 = 43/450 
TOGETHER they will fill the pool in 450/43 hours 
So 5/6 of the pool will take 5/6 X 450/43 = 2250/ 258 = 8.7209302 hours OR 
8 hours AND 43.26 minutes ANSWER
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Hope this helps!