Witches Potion 3 - 7th period

Now let's make some for the whole class!

Let's make a lot of Witches Potion!

This recipe makes 2 batches of Witches Potion, but you now need enough for everyone in the class to have one batch. Explain how much of each ingredient would you need and why.

For example, I need ___ cups of eyeballs because I ____________ the number of eyeballs by ____.