The vertical component of the velocity, which is affected by gravity is 95sin18 (degrees) = 29.36 ft/sec. The horzontal component, 95 cos 18 = 90.35 ft/sec is not affected by gravity. The parameter is, as you suggest, the time (t). The parametric equations are therefore the equations of motion in the vertical and horizontal directions. The vertical equation of motion is given by y (height) = 29.36t - 16t^2 (t-squared). The horizontal motion is given by x = 90.35t. Solving the first equation for t = 0 gives you two solutions, t = 0 (the instant the ball is kicked) and t = 1.835 seconds (when the ball hits the ground). The horizontal equation tells you that the ball will travel 1.835 X 90.35 = 165.8 Ft.