Answer:
Pay tuition first
Step-by-step explanation:
Mrs. Das should pay the tuition fee of her children first from the $5000 balance with her, this is to enable the children take their exams without any distraction. Failure to pay their tuition may also mean that the children will spend an additional year in some cases. Therefore to avoid inflicting psychological distress on the children, paying the children's tuition will be made priority.
Also, settling Avon before the due date is important too and if I were in her shoes may decide to return or sell some of the goods purchased from her because it could be seen that Mrs. Das was carried away by Avon's stock and purchased more than those things which they needed most importantly.