Right now, Shaun is 2 times as old as Phil. In 4 years, the sum of their ages will be 48. If Shaun's current age is represented by x, then which equation can be used to solve for x?

Find the x-intercept and y-intercept of the line. 3x + 5y = −15

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?

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?