Okay. Here are some ways to buy cookies:
2 packs of 36
6 packs of 12
1 pack of 36 and 3 packs of 12
72 single cookies
12 single cookies and 5 packs of 12
24 single cookies and 4 packs of 12
24 single cookies, 1 pack of 36, and 1 pack of 12
36 single cookies and 3 packs of 12
36 single cookies and 1 pack of 36
48 single cookies and 2 packs of 12
60 single cookies and 1 pack of 12
If I'm not mistaking, the numbers of ways you can make cookies with the following packaging is 12.