How many football games has the university of Alabama lost in last 2 and a half years?

To answer this precisely, we need to define "last 2 and a half years" with a specific start and end date. Also, we need to clarify what counts as a "football game" (e.g., does it include bowl games?).

You'll need to consult a reliable source like the official University of Alabama athletics website or a reputable sports statistics website (like ESPN) to find their game results for the specific period you're interested in. Then, you can count the losses yourself.