It means you accept their scholarships and loans and will go there so try to reverse that!
At this point in particular you need to wait for your other offers to compare them all.
You should only accept the financial aid to the school you plan to attend. However you can print out the offer to compare more easily with any other offer you get.
Yes that’s their 'final offer ’ for you, unless you applied to the honors college and are waiting for decisions from that.
Can you list the offer here?
More generally speaking, never 'approve’or 'sign’anything until you’ve read through it and thought about it / asked about it.