Help Again Tonight- Undeclared (first use this function)

[CodeTilYaDrop]

I need help again. This is probably an easy fix, but I can not figure this out. It is late, and this probably explains why I can't figure it out. This is my error

'positive' undeclared (first use this function)

Can anyone point me in the right direction to fix my code based off this error message??? Thanks in Advance- CTYD

[sicarie]

Care to post the lines you're getting that error from?

[CodeTilYaDrop]

I sent you a private message instead of posting it here. It is a homework question, and I don't think my teacher would like the answer posted here. Thank you for any help- CTYD