Showing max date, min date and count of records in table

I have a simple Db consisting of a single table (tblRoomAssignment) with four fields:
fldAutoID
fldDate
fldUser
fldRoom

I have a form where the user creates a query to locate records of interest. I'm using Combo boxes for each form field. Everything works fine.

Now I want to add three text boxes to the form that show:
the minimum date in fldDate,
the maximum date in fldDate, and
the count of records in tblRoomAssignment.

I do not intend for the user to modify the values in these text boxes.

I'm pretty sure I create an unbound text box and use an expression as the default value but that's as far as I've been able to get.

Help is appreciated!