You have just installed a new printer on your computer, and while it seems to be recognized by the operating system, it will not print. What is the first source to check for information on the problem?

Many organizations release indexes used to measure the development of the world's countries. as we learned in this lesson, these indexes measure many factors, from life expectancy to happiness. in your opinion, what are the three most important factors we can use to determine how developed a country might be? explain your answers in a few sentences.