Online tutor jobs in Chile

Professor, good afternoon. I'm writing to you from the other side of the world. I understand that you understand naval architecture and I have some exercises that I personally don't know how to do. Could you help me solve them in class?

I want to learn pre algebra and advance

Hello, how are you?

I'm reaching out because I'm looking for chess lessons for my 14-year-old son. He is very dedicated to chess, but we've hit a roadblock… He reached a rating of 2040, but now he's dropped to 1940, and for some reason, he can't seem to surpass his own goal (which, by the way, was not imposed by us in any way).

He plays very...