POTW #4 - Don't Forget to...

Hi again, please see below for solutions and questions to this week's version of the POTW. Don't forget to check the solution that is posted, NOT JUST the answer!

Grade 7 POTW #3 Solution:


Grade 8 POTW #3 Solution:



Grade 8 POTW #4 Question:


Grade 7 POTW #4 Question: