What's the solution for this?

APPLICATION 6. A golf ball is hit off the top of a bridge into a river below. It's path can be modeled by the relation h=-0.1(d -15)' + 40, where h is the height of the ball and d is the horizontal distance, both in meters. a) How high is the bridge from the water below? 2 b) What is the vertex of this relation? O c) What do the coordinates of the vertex represent in this situation with respect to the path of the ball? Be specific. O d) What is the height of the ball when it has travelled a horizontal distance of 22 m? 2