Hello!
What you want to do first is look how much water 1 serving needs. We can do this by dividing 4 (tablespoons of water) by 10 (servings)
4 / 10 = 0.4 (tablespoons of water per 1 serving)
Now that we know this, we can calculate how much water we need for 8 servings.
0.4 x 8 = 3.2 tablespoons, so answer B
Hope this helped!
