Find the distance between these two lines y=-1/3x+7 and y=-1/3x-3

Read the article titled "trans-saharan migration routes to north africa and the eu: historical roots and current trends." why do tens of thousands of sub-saharan africans try to cross the mediterranean each year? how are these refugees commonly portrayed? (site 1)

Which of the following statements about wearher along mountain ranges is correct

List 3 factors commonly used to select the location of a city