Oo what is 32 x 23 / 21

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

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

Which inequality represents all the values of x for which the quotient below is defined? √x+1 ÷ √ 4-x