Please answer this you don’t have to use a graphic cal ur choice

Two lines parallel to a third line are parallel to each other. always sometimes or never

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?

What is not true about kl and mn? what is mn? (show )