Give three units that can be used to describe volume

Divide. reduce the answer to lowest terms.5 2/3 ÷ 3 1/9

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

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?