Answer:
10 packs
Explanation:
Allie wants to give each of her classmates 3 pencils, so she needs a total of 3 pencils * 26 classmates = 78 pencils.
The pencils come in packs of 8, so she needs 78 pencils / 8 pencils per pack = 9.75 packs of pencils.
Since you can't buy a fraction of a pack, Allie needs to buy 10 packs of pencils.