Jessika.

5 people went to a meeting. To start off each person was asked to go around and introduce themselves to everyone there. How many introductions were made? Start with 2 then 3 people etc. looking for a pattern

Four friends set up a a camera so that it would take a photograph of the group standing in a lne. They argued about who would stand where, so decided to take a photograph of every possible arrangement of the 4 of them. How many photographs need to be take...

Trudy brought a large bag of wine gums to school. She gave half to the first student she met, half the remainder to the next and half of what she had left to the third student. The last 5 wine gums she ate. How many were in the packet?