Please tell me where to plot the points and what the solution will be.

If angle 2=3x +1 and angle 3=2x +4what is angle 2

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 the x-intercept and y-intercept of the equation 2x+1. 2o