if 2200 pounds of gravel fills 170 square feet of ground at 2 inches deep how many pounds of gravel do I need to fill 200 cubic feet?

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

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled

Solving algebraic equations 2m+3=11