Answer:
I’m pretty sure the square root between two Integers is when you have a non perfect square root for example the square root of 92. Since it is not perfect you have to estimate it and you use a numeric line to do it so in this case the square root of 92 would have to go in between the nearest perfect square roots from both sides which are 81 and 100. In the line you would see it as 9 and 10 and you have to estimate the value which in this case would be about 9.6 
Step-by-step explanation:
 
        
             
        
        
        
Answer: your answer would be
x-30y=100 and 10y = x - 20
Step-by-step explanation:
 
        
             
        
        
        
Step 1: Find out how many cm3 is filled in a minute.
750000/30 = 25000cm3 per minute
Step 2: Find out how many minutes it takes to fill 1200000cm3.
1200000/25000 = 48 minutes
Answer: 48 minutes
        
                    
             
        
        
        
I thought it was the one above it but I think you are right tho
        
             
        
        
        
Answer:
-x with an exponent of 2 + y with an exponent of 2
Step-by-step explanation:
good luck