What is 2% of 400. i am revising and i need the answer. thnx x

Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown

How do you summarize data in a two-way frequency table?

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)