Me, we aren't learning all of this stuff yet!

What is the shape of the height and weight distribution

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?

Which of the following is not a subset of {1,2,3}?