как решаются неравенства такого типа:

корень из(х-2) > 3

т.е. когда одна сторона под корнем а вторая нет

Маша и Таня вместе могут вымыть 6 одинаковых окон за 10 часов, Таня и Лена могут вымыть эти же окна за 12 часов, а Лена и Маша могут вымыть 8 таких же окон за 15 часов. За сколько часов девочки вымоют 6 окон, работая втроем?

проверьте пожалуйста личное письмо

Dear Ann,
Thank you for your letter! Sorry that I haven't written to you, but I have been busy.
As for your asks, I often have arguments with my parents. They don't support my interests and hobbies. Less likely to quarrel with my parents, I spend most of my free time with friends. We go to the cinema, skating, or just walking.
If I don't agree with the parents on the holding of free time, I try to explain why I want to spend time that way.
What is your relationship with her sister? How often do you quarrel? Did you tell the secrets of her younger sister?
Sorry, I must finish now, because I have to revise for my tomorrow exam. Hope to hear from you soon

with love,
Elya.