Desperately need ! what is a vector, how are vectors represented, and how do you combine vectors?

A vector is a quantity that has 2 independent properties:magnitude and direction.
Vectors can be graphically represented by directed line segments.
We can add vectors by joining them head to tail

The horse latitudes-high-pressure zones about 30 degrees north and 30 degrees south of the equator.-warm air traveling away from the equator cools and sinks-weather tends to be clear and drythe doldrums-low-pressure near equator-air rises and spreads out toward the poles-rising moist air produces clouds and heavy rainthe westerlies-blow from the west-move from the horse latitudes toward the poles.-bring storms across much of the united statesthe tradewinds-blow from the east-move from the horse latitudes toward the equator  -strong, steady winds