To find this answer, you must first figure out how any pencils you are going to need.
so to find that you must multiply the number of children by the number of pencils each person will use. So 28 x 4 = 112
So then you have to figure out how many packages that you will need.
so to do that you divide the number of pencils by the number of pencils in one package.
so 112 / 8 = 14
The answer is 14 packages.
I hope this helps!
Have an amazing day!