After stirring, mixing, shaking, and resting, how much is still in the bowl ?
Still 28 pounds. Nothing else went in, and nothing came out.
After a month, nobody has come into the store yet asking to buy 28 pounds of trail mix. So before it spoils or gets soggy, they decide to split it up into 14 smaller packages, and see if more people will buy smaller packages.
They make all of the small packages exactly equal. How much trail mix is in each one ?
(28 pounds) divided by (14 packages) = <em>2 pounds/package</em>