Where to find Arithmetic and Algebra Session 7 and 8

Hi. I am following the one month plan and on Day-10 we did Arithmetic and Algebra Session 4, 5, 6 but the next in series on Day-11 starts with Session 9. Where I can find the sessions 7 and 8?

There were homework question at the end of Session 6 and I am looking for the next session where the solutions are discussed.

Thanks!