Hi there! $8 per 4 bottles means price/# of bottles will give you the average price per bottle. 
8/4=$2
Therefore it is $2 for 1 bottle. 
Hope this helps!
        
                    
             
        
        
        
What are the following fractions
        
             
        
        
        
Answer:
2 and -1 so it would be the first choice
A)
Step-by-step explanation:
 
        
             
        
        
        
Answer:
 x = 4 - 1 = 3
 
Step-by-step explanation:
2(4 - y) + 3y = 9
8 - 2y + 3y =9
8 + y = 9
y = 1
 
        
             
        
        
        
Answer:
 5x^2+22x-12         x cannot be -5, -4, -2
(x+5)(x+4)(x+2)
Step-by-step explanation:
In order to solve this, your denominator must be the same. Let's start by writing out the two different quadratic formulas:
x^2 + 6x + 8 <-- This should factor out to (x+4)(x+2)
x^2 + 7x + 10 <-- This should factor out to (x+5)(x+2)
Now that you have factored out the two quadratics, plug them into the equation. 
     5x        -       3
(x+4)(x+2)      (x+5)(x+2)
Now as we know, -2 cannot be x because it will turn the entire equation undefined. Multiple top and bottom with (x+5) on the right side and (x+4) on the left side.
5x (x+5)             -           3(x+4)  
(x+5)(x+4)(x+2)      (x+5)(x+4)(x+2)
Focus on the top. 5x(x+5) will turn out to be 5x^2+25x. 3(x+4) will turn out to be 3x+12. Combine the two equations because now they are equal to each other and do the subtraction:
5x^2+25x - (3x+12)     =    5x^2+22x-12         x cannot be -5, -4, -2
  (x+5)(x+4)(x+2)               (x+5)(x+4)(x+2)