Prove: DOBK is a rhombus
Please help me answer the following questions in the picture

What is the distance between (–2 1/2,-3) and (1, –3)?

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%

In the geometric progression –3, 12, −48… what term is 3,072?