An art class plans to paint part of a rectangular wall in the cafeteria and leave the rest of the wall white, as
shown. The painted section will take up of the area of
the wall. What is x? Show your work.

Really need on these. i have no idea what to do

Amodel rocket is launched from a roof into a large field. the path of the rocket can be modeled by the equation y = -0.04x^2 + 8.6x + 4.8, where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters, of the rocket above the ground. how far horizontally from its starting point will the rocket land? a. 0.56 m b. 215.56 m c. 431.11 m d. 215.74 m

How can (square root of 25) ^2 be rewritten?