I wanted to say "Please take a look at the ones with check marks beside them". But I was kind of confused whether it is more correct to say "Please take a look at the ones with a check mark beside them".
Also, would "I've attached the copies of the photos" be more correct than "I've attached a copy of the photos"?
EDIT: Sorry for recycling old questions, but I didn't want to start a new topic...
Can I say "Please find attached the copies of A, B, and C" although A, B, and C are very different? I'm not sure if I can group different things together (I think someone said it is okay to say "this here is your chair and desk" because a chair is very different from a desk, while you have to say "these are your coworkers," since you can't have more than one type of coworker).