Answer to number 4 and 5 somebody answer quick

What is the value of y? round to the nearest tenth

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%

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?