Solve for x, show your work:
18/x^2 - 9/x = -1

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

The total number of dental clinics total for the last 12 months was recorded

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?