There are 6 snails and 5 fish.
6:15, because 
2:5
2+5=7
21/7=3
2:5(3)= 6:15
        
             
        
        
        
Answer:
It's 1/2  I found this out by subtracting 3/4 - 1/3= 5/12 and if you put that into a decimal it would be .41. So that 1/4= .25 and 1/2= .50. You could figure out that it’s closed to 1/2.
 
        
                    
             
        
        
        
Answer:
216
Step-by-step explanation:
180 times .2 (20 percent in decimal form) = 36 
36+180=216
 
        
             
        
        
        
Just like 2 squared = 4, the square root of 2 multiplied by itself will result in a product of 2. Squaring a number always means multiplying that number by the same number.
        
             
        
        
        
Answer:
C. it is not a function
Step-by-step explanation:
It fails the horizontal and vertical line test.
To pass the horizontal line test [injective]: must not hit a horizontal line passing through more than once. 
To pass the vertical line test [function]: must not hit a vertical line passing through more than once.