Physics problem - projectile motion! thank you?

hi! can't seem to derive the right answer on this practice problem! please help me out and show your steps/final answer. thank you so much i truly do appreciate it. 2. A large cannon is fired from ground level over level ground at an angle of 79o above the horizontal. This initial speed is 993 m/s.... show more hi! can't seem to derive the right answer on this practice problem! please help me out and show your steps/final answer. thank you so much i truly do appreciate it.

2. A large cannon is fired from ground level over level ground at an angle of 79o above the horizontal. This initial speed is 993 m/s. Neglecting air resistance, how far will the projectile travel in the horizontal direction before striking the ground?
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