on’t understand this and i need help way bad. please explain step by step. thank you.

a hiker trows a ball at an angle of 21.0 degrees above the horizontal from a hill 21.0 m high. the hiker’s height is 1.750 m. the magnitudes of the horizontal and vertical components of the velocity are 14.004m/s and 5.376 m/s, respectively. find the distance between the base of the hill and the point where the ball hits the ground. (consider the hiker’s height while calculating the answer.)