1. How to not lose everything: If you press “next” button, it will save your work without submitting it.  Make sure to “next” frequently because the homework page will log you out after two hours of inactivity.
2. You will get only one chance to submit.  You won’t be allowed to try again because you will get the full solutions the moment you submit.
3. For the problem into which you must enter mathematical expressions, see the explanations on this page http://en.sabioacademy.com/support/how-to-enter-homework/

Auto grading answer entry rules

1. There should not be any space
2. should be entered as 2r3
3. should be entered as 2r3/4