yes, Ukrainian "и" is like Russian "ы" (just a little softer but you can use this trick)
They both mean "you," but "ти" is informal and "ви" is formal. "Ви" is also used to address a group of people (in a formal or informal situation).
So doesn't 'хто ти' mean the same thing? If it does, how do I know when to use which one
Read the comment above - https://www.duolingo.com/comment/8798170$comment_id=17604915 . Or you ask about something else?
Xto just like ABCDEFGHIJKLMNOPQRSTUVWXYZ C balances when m is taken for graph ABCDEFGHILKJMNOPQRSTUVWXYZ i suppose c-to is specifical..to be taken form as Xto