Topic of the day/tommorow

A merchant can place 8 large boxes or 10 small boxes into a carton for shipping. In one shipment, he sent a total of 96 boxes. If there are more large boxes than small boxes, how many cartons did he ship?

There are n points on the plane such that not all of them are on a single line. prove that we can draw at least n different lines that pass through at least 2 points.

good luck ;)