Describe a way to remember that lines of latitude run east and west or across the map

Find the equation of the line passing through the point (–1, 5) and perpendicular to the line 3x + y = 4.

Advantages and disadvantages of mitigation and adaptation

The first atomic explosion was detonated in the desert north of alamogordo, new mexico, on july 16, 1945. what percentage of the strontium-90 ( yr) originally produced by that explosion still remains as of july 16, 2016?