Compute the standard deviation of the data set. round to the nearest hundredth, if needed.

i think its d but i could be wrong

Apark is in the shape of a rectangle. the park authorities are planning to build a 2-meter-wide jogging path in the park (shown as the shaded region in the image). what is the area of the jogging path? plz

Meg constructed triangle poq and then used a compass and straightedge to accurately construct line segment os, as shown in the figure below, which could be the measures of angles pos and angle poq?

(-y to the power of 2 - 4y- to the power of 2 -6 y +3)