The length of time it takes a letter to get from London, England to  Dallas, Texas depends on the method of mail. First Class mail takes  between 5 and 8 business days to ar â¦ rive.
It is estimated 1.2 million students annually drop out of high school in the United States, where high school graduation rates rank 19th in the world. Reasons are varied and may include: to find employment, avoid bullying, family emergency, poor grades, depression and other mental illnesses, unexpected pregnancy, bad environment, lack of freedom, and boredom.
Although such exclusion may not alter the general findings (it seems unlikely that students who work and then drop out will mitigate the negative academic outcomes), it is worth noting that the findings pertain most directly to students who graduate from high school on time and with a traditional certificate.he authors analyzed the effect of working on the various outcome measures at each grade, as well as for future grades (so that, for example, they could examine the effect of working in grade 8 on outcomes in grades 10 and 12, as well as after graduation).