Hey! Just browsing LR forum posts and saw no one responded to this. I wrote an explanation here: https://7sage.com/discussion/#/discussion/26042/pt-1-s3-q18-please-help
@Ashley2018 Hey this is Ron from yesterday's zoom session, if you still need help understanding Q18 - (PT 81 S3) - let me know and I'd be more than happy to explain it to you!