Answer:
Each conservation law of a given partial differential equation is determined (up to equivalence) by a function known as the characteristic. This function is used to find conservation laws, to prove equivalence between conservation laws, and to prove the converse of Noether's Theorem.
Explanation:
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Ok, you know 8x3=24 so the answer will be at least 9 because 3x3=9.
8x9=72 and 25x3=75 so if you do 8x10 you get 80 and that's enough for each student with 5 left over.
So, the teacher will need 10 packages of markers.