When is it logical to use 22 over 7.
instead of 3.14

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?

Find the slope of the line passing through a pair of points

Which inequality statement describes the two numbers on a number line? "? 7 and a number 5 units to the right of ? 7"