Answer:
Option B
Amount of orange juice did Fabian use to make the punch is 11 liter.
Explanation:
Given : Fabian mixes orange juice with 4 cans of pineapple juice to make punch. Each can of pineapple juice holds 2 liters. He makes a total of 19 liters of punch.
To find : How many liters of orange juice did Fabian use to make the punch?
Solution :
Let x be the amount of orange juice.
There are 4 cans of pineapple juice.
Each can of pineapple juice holds 2 liters.
So, 4 cans can hold
liter of pineapple juice.
Together they make x+8 liter.
He makes a total of 19 liters of punch.
i.e.



Therefore, Amount of orange juice did Fabian use to make the punch is 11 liter.
So, Option B is correct.