I'm sorry but I do not see where I failed to answer correctly?

+ maybe it isn't much to go on but as you can see one of my friends commented on my profile in 2010(once again if I was 13 right now I would be 10 in 2010= once again very unlikely, and it says on the side that I joined 2008)

I'm sorry but I do not see where I failed to answer correctly? + maybe it isn't much to go on but as you can see one of my friends commented on my profile in 2010(once again if I was 13 right now I would be 10 in 2010= once again very unlikely, and it says on the side that I joined 2008)