Simplify the difference. (7w^2 – 7w – 8) – (5w^2 + 2w – 3)

The table below shows the height of a ball  x  seconds after being kicked.  what values, rounded to the nearest whole number, complete the quadratic regression equation that models the data? f(x)  =  x2  +  x  +  0based on the regression equation and rounded to the nearest whole number, what is the estimated height after 0.25 seconds?   feet

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

David leaves his house to go to school. he walks 200 meters west and 300 meters north. how far is david from his original starting point?