Which unit rate is the lowest price per ounce? choice a: 25 ounces of potato chips for $3.49. choice b: 45 ounces of potato chips for $4.79 choice a choice b both are equal not determined

Why can't my rank go i have 1723 points, but my rank is only at ambitious, which is only 250 points! like, (p.s. i know this isn't related to math, but i just don't know why it's doing this and i would really appreciate if someone could tell me whats going on with this)