Does anyone have an zoom I can join

Which expression is equivalent to 4 square root 6 divided by 3 root 2

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

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%