Find the area of the polygon.

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

Name the most appropriate metric unit for each measurement

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?