True. Do you have a question regarding this?
Irrational, because if you simplify the root V72=6V2
Approximately 0.67 of a cup of sugar is needed. Let me know if this isn't right.
I don't know how to solve this but you can go to desmos.com and it will graph it for you.
Hope this helps make your life easier!
500 is the answer because 500 is much closer