Answer:
A: 9
B: 2 cups of orange juice and 3 cups of soda water
Explanation:
A: Since the amount of cups per soda water is linear, you would divide the amount cups of orange juice by the amount of cups soda water and you get 1.5. then you multiply 1.5 by 6 to get 9.
B: Because the amount of cups per pineapple juice is equal to 1 cup of orange juice is 3, you would just multiply 2 by 3 to get 6 cups of pineapple juice. then you multiply 2 by 1.5 to get 3 cups of soda water. I feel like I did it wrong but I'm pretty sure this is correct.