The product of 579 and 28 is closet to

For the function, f(x) = -5x 2, find f(-4).

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

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