1 gallon = 16 cups. She is making 2 gallons so needs 32 total cups.
The ratio is 4:3:1
Add the ratios: 4+ 3 + 1 = 8
Divide total cups by total ratio:
32/8 =4
Now multiply that by each portion of the ratio:
Grape juice = 4 x 4 = 16 cups
Pineapple juice = 3x4 = 12 cups
Cider = 1x 4 = 4 cups 
She needs 12 cups of pineapple juice.
 
        
             
        
        
        
Answer:
its 112 because 16x16 is 256 and 12x12 is 144 and minus 256 by 144 is 112 its D hope this helped
 
        
                    
             
        
        
        
Answer:
yes
Step-by-step explanation:
yes
 
        
             
        
        
        
Answer: x=4 y=14 z=4
Step-by-step explanation:
On edge it is that 
 
        
             
        
        
        
Answer - 20a + 24b because 8 is added to both variables.