Ivan plans to reorganize the music on his mp3 players . he has 9 1/3 music of rock and hip-hop . after the change he is planning , he will have 2 4/5 times as many hours if rock and hip-hop music on his mp3 players . is ivan planning to add or remove rock and hiphop music from his mp3 players . explain how you know

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field