Answer:
-40 %
Step-by-step explanation:
((y2 - y1) / y1)*100 = your percentage change
(where y1=start value and y2=end value)
((75 - 125) / 125) * 100 = -40 %
The percentage change from 125 to 75 is -40 %
 
        
                    
             
        
        
        
We will verify each options
option-A:

we can factor it 



so, this is not irrational.........Answer
option-B:

Since, it can not be factored 
so, this is irrational.........................Answer
option-C:

we can factor it 



so, this is not irrational.........Answer
option-D:

we can factor it 



so, this is not irrational.........Answer
 
        
                    
             
        
        
        
X=10 let me know if you need the work
        
                    
             
        
        
        
Answer:
(0,1)
Step-by-step explanation:
the answer is (0,1)
 
        
             
        
        
        
You use sine, cosine, or tan