Kate sold 1 2 of her paintings and purchased 7 more. if kate has 21 paintings now, how many paintings did she have to begin with?

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?

Geometry: determine whether segment mn is parallel to segment kl. justify your answer. jm 6 mk 3 jn 8 nl 4

What is the range of the relation in the table below? x y –2 0 –1 2 0 4 1 2 2 0