Well start by figuring the total amount of buns brought. This is found by multiplying the amount of packages brought by how many there were in each pack...
32 x 12 = 384
Now it says that you had 2 full packs left, and die extra buns. So you can figure how many are left with...
(2 x 12) + 5 = 29
Now subtract the total bins you had by how many you have left, and you'll see how many were used.
384 - 29 = 355
So 355 buns left, tell john he doesn't need so many! I hope this helps!
