how do I solve for the horizontal distance? please show calculations

Initial Values Height: 6 m Angle: 50 Speed: 21 m/s Cannonball Mass 17.60 kg 31 Diameter 0.18 m 0.1 Gravity 11.11 m/s2 6 m 50' Air Resistance Altitude 0 m Drag Coefficient: 0.47 - - - - - - - - - - - - - - 24.4 m Initial Speed 21 m/s Normal 0- SlowInitial Values Height: 6 m Angle: 50 Speed: 21 m/s Cannonball Mass 17.60 kg 31 - Diameter 0.18 m 0.1 Gravity 11.11 m/s Air Resistance Altitude 0 m Drag Coefficient: 0.47 24.4 m