Solution

159407

First name
Louis,Jonathan, and Adi
School
Cold Spring Elementary
Age
10

we figured out that squares were eight, as well as triangles were six, because when we added them, it made twenty-eight. of course, then we tackled the hexagons, which were seven. of course, we figured out immediately that circles were four. then, we easily found the mystery number, twenty-one. 😁