Hey.. HELP ME PLEASE

The vertices of a triangle are a(7,5), b(4,2), c(9,2). what is m

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

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%