You do not need to turn this in but you should use
this for practice.

Edit your food.py (hamburgers and fries) code so that
it not only asks the user for the price of burgers
and fries, but for how many of each the user wants
to buy.  Note that these will be integers, so use
the appropriate input statement.

Next, edit the program so it asks the user what the
sales tax percentage is.  Try to construct your 
program so that the user can enter the sales tax
percentage in the "normal" way, e.g., as 9.25 instead 
of 0.0925.  This will be a float, so again use the
appropriate input statement.