a girl is at the top of a vertical cliff, at a point 120m above the ocean. she hammers a tennis ball up into the air. after 2.5 seconds, the ball reaches a maximum height of 145m above the ocean. when is the ball just 20m above the ocean?

Robert plans to make a box-and-whisker plot of the following set of data. 27, 14, 46, 38, 32, 18, 21 find the lower quartile, the median, and the upper quartile of the set? lower quartile: 19.5; median: 29.5; upper quartile: 42 lower quartile: 14; median: 27; upper quartile: 46 lower quartile: 18; median: 27; upper quartile: 38 lower quartile: 16; median: 29.5; upper quartile: 42