Mercury and the Sum of a Series).
Before I announce the winners, I need to mention a slight change to how I do this from now on. I used to wait for the winners to respond to my congratulatory email so that I could list their names and countries. However, some don't bother replying, so that it looks as if nobody won! So, from now on, I shall announce the winners using just their initials or part of their email address. Then, once the winners have responded and the actual claimant student has accepted the prize, I will list the names as they join our online classroom.
Having got that out of the way, this week's winners are:
An email has already been sent.
For the first time, we have had more submissions than prizes, so to those who didn't win this week, please try again next Friday.