1. how do metal detectors make save lives?

How and why did the 27th amendment modify the authority of congress to set its own pay

China wants to take control over social media in which other region? question 4 options: taiwan chile japan hong kong

How can changes in technology or consumer demand make it difficult for people to get jobs? by changing the number or kind of jobs available by making it possible for some people to work fewer hours by making it difficult for people to buy what they want by creating a demand for things that are not available