how do I find horizontal distance? Please be thorough with calculations. I know the distance can not go over 30 m but I do not know how to calculate.

Initial Values Height: 3 m Angle: 16' Speed: 18 m/s Cannonball Mass 17.60 kg 31 - Diameter 0.18 m ).1 Gravity 9.81 m/s2 Air Resistance Altitude 0 m Drag Coefficient: 0.47+ Initial Values Height: 3 m D Range Haight Angle: 16 Speed: 18 m/s Cannonball Mass 17.60 kg 31 Diameter 0.18 m 0.1 1 Gravity 9.81 m/s2 Air Resistance Altitude 0 m 3 m 16 Drag Coefficient: 0.47 - - 21.7 m Initial Speed 18 m/s II Normal C Slow