If mZFXA = 96, what is mZFXM?

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

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%

Tell whether the two rates form a proportion