This is another one im having trouble with

Complete the statements about the system of linear equation respresented by the tables the equation respented the left table is

The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out