Can somebody plz help me!!​

How do the graphs of y = 1/x and y=5/x+6 compare?

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.

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?