3.7.18+and+3.8.17

Conclusions: https://docs.google.com/document/d/1qnL1-HQaItWXS4CsXLZjLQpZgoAzeMTzNSafAgwKJ4c/edit?usp=sharing

Peer-editing guide: https://docs.google.com/document/d/1Tt_FGo4mBJiIfEUmaxKkYe5AK_dKW3ImI-cbkkho2kI/edit?usp=sharing

HW: Final draft DUE at the start of class on 3/13 for P. 2 and 3/14 for P. 5 and P. 8.