PLEASE HELP ASAP !! WILL MARK BRAINLIEST

Given the box plot, will the mean or the median provide a better description of the center? box plot with min at 10.5, q1 at 11.5, median at 12.5, q3 at 13.5, max at 15

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths

Does the point (1, sqrt 7) lie on circle shown.