A birds nest is 12 feet above the ground. A moles den is 12 inches below the ground. what is the difference in height of theses two positions. 24inch,11ft,13ft,24ft

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

Astuntman jumping off a 20-m-high building is modeled by the equation h=20-5t^2, where t is the same in seconds. a high-speed camera is ready to film him between 15m and 10m above the ground. for which interval of time should the camera film him?

If the scale factor between two circles is 2x/5y what is the ratio of their areas?