The correct answer for this question is this one: "So there are 7 packs of stickers that LaMia bought"
In order to answer this question, you have to:
Step 1:
Lamia has 133 stickers. It is known that in a pack, there are are 19 stickers.
Step 2:
We have to divide 133 by 19 in order to get the number of packs of stickers.
133 / 19 = 7
So there are 7 packs of stickers that LaMia bought