Find the value of 15/4 divided by 5/8

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

What is the value of x in the following equation. -x ^3/2 = -27