How would I solve this?

A projectile is fired from ground level with an initial speed of 300 m/sec and an angle of elevation of 30 degrees. Use that the acceleration due to gravity is 9.8 m / sec?. (a) The range of the projectile is meters. (b) The maximum height of the projectile is meters . (c) The speed with which the projectile hits the ground is m/sec. Note: You can earn partial credit on this