25 points pls help

which of the following rational functions is graphed below?

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?

In angle pqr find the measure of

Find the value of x. give reasons to justify your solutions! l, m ∈ kn