Sephiroth

"Jeremy is cooking using a recipe that requires flour, sugar and water. For each cup of sugar that Jeremy uses, he needs to use two cups of flour. He needs to use 2 1/2 more cups of water than flour. He also needs to use 3 1/2 cups less sugar than water....

Thank you for your help. I'm still not entirely clear, but we'll probably go over the study guide before the exam, so I'll get a better understanding of it then. Once again, thank you for your help. :)