What distance is about 3x10^-5 meters

Need same math paper but the back now i hope your able to read it cleary i need with hw

Arectangular yard has area 96 square feet. if the width of the yard is 4 feet less than the length

The center on a target has a diameter of 5 inches. the whole target has a diameter of 25 inches. complete the explanation for what part of the whole target is the center. the center of the target takes up % of the whole target.