PLEASE HELP I HAVE TEST!! Find the measure of the arc or angle indicated

Find the measures of the complement and the supplement of each angle, m

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%

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way