Per 1: Unit 4 Lesson 3 finished
Per 6 and 7: Unit 4 Study Guide
https://docs.google.com/document/d/1u9KtFEvgoX8vmEOcQErwLR27D-vlWHPz-okvdtARVYo/edit?usp=sharing
https://drive.google.com/open?id=169egas6TuFJuDAvBYhV3UM-8YRWUpRQDmDmBZSEHGW8
