Symbol: sideways a with cy) also sideways above. My sister brought home some high school math today and I have no clue what the symbol means. It's a sideways a with a cy) above it (or to the right of it since I read left to write...). Anyone know what it could mean? Image of math equation Thanks for any and all help! Amy

It looks like a typo or a joke. In either case, it is a good exercise for your sister to figure out what possible values that symbol could have, assuming she only knows basic arithmetic and she only works with integers.

**Hint** : it has to be a multiple of 7, for example. Can it also be a multiple of 5? Etc.