In the delete section of the manage classmates, there is a red delete instead of Admin. What do I need to do inorder to get that delete out of that section.

The red delete appears next to all Classmates' names if they are not Admins. That is the only way you can delete a Classmate. If the Classmate is also an Admin, then the red delete is replaced by a non clickable word "Admin". Should you ever need to remove an admin, first edit the Admin's Contact Details screen, and remove their Admin rights. When you do this the "Admin" will go away and be replaced by the regular red "Delete" link.