Tricia starts school at 7:00 AM and has lunch at 12:00 PM. She wants to make sure she has something to eat in between. Determine what time she should eat her snack if she is to eat at exactly a time between starting school and eating lunch.
(Hint: Set up a horizontal number line as a timeline.)
9:00 AM
9:30 AM
10:00 AM
10:30 AM