Sorry you've not had any responses about this. Are you sure you’ve posted in the right place? Posting in the specific Study Help forum should help get responses.
I'm going to quote in Tank Girl now so she can move your thread to the right place if it's needed.
You use your camera to scan the QR code on page 306 - if you download any QR reader app on your phone and scan the QR code, it should take you straight to the answers