Which energy change happens when we switch on a battery-powered radio​

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

Select the quadratic that has root x = 8 and x = -5

Write an equation for the function that includes the points (2,100)and (3,100)