Answer:
Step-by-step explanation:
D is correct. The idea here is to ensure that the point on the post is equidistant from the bottom of the post (where it meets the ground), which in turn ensures that the angle between ground and post is 90° in at least two places on the ground.
7,500*20%=g
7,500*.20=g
1500=g
1,500 general admission tickets were sold.