What is the sum 3/x+4/x^2.

Late at night some traffic signals change patterns and become ?

What does space concept mean in international relations?

Hink about similarities and differences between the weather and climate of places around the world. which set of words are more closely related to climate? a) windy, sleet, tornado b) tropical, polar, moderate c) clouds, precipitation, snow d) thunderstorm, rain, hurricane