Acomparative box plot for two data sets is shown which statement is true a)more then 50% of the data for each set is between 20 and 23 b)no more then 25% of the data for the sets overlap c)at least 75% of the data is greater than 23 d)more then 25% of the data for each set is greater than 20

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.