A parabola can be drawn given a focus of (4,0) and a directrix of y = 4. What can be said about the parabola?

Given right triangle xyz, which correctly describes the locations of the sides in relation to

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

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?