You can substitute any positive odd number for 15. For example: SQRT (X+7) + SQRT (X) = 7 gives X = 9. It works because the difference of any two consecutive squares is always the sum of their square roots.
Snowmen, it's an advertising site. It wouldn't make sense for him to list an MP if they're not going to pay for advertising, which I imagine is the case here.
https://terb.cc/vbulletin/showthread.php?s=&threadid=45888
Based on this thread, I would think that the three are available together in one way or another.
Yeah, I am new. I'm still just trying to figure out the do's and dont's. Thanks for the advice; from what I've read on the board, everyone has high praise for Nikita.