Ba, bd and bf are angle bisector of adf find n

Awrestling tournament begins with 128 competitors. in the first round, each competitor has 1 match against another wrestler. the winner of each match moves on to the next round until there is a winner. write a sequence in which the terms represent the number of players still in the tournament at the end of each round. describe the sequence? how many rounds are in the tournament?

W-16=-12 solve each one step equation plz

M.xyz =radians. covert this radian measure to its equivalent measure in degrees.