Cats There are 15 cats. Ten are striped and 7 are striped and have green eyes. The rest of the cats have green eyes but are not striped. How many cats have green eyes but are not striped?

We know that 7 cats are both striped and have green eyes. Therefore, the number of cats that have green eyes but are not striped is 15 - 7 = <<15-7=8>>8. Answer: \boxed{8}.