What are the advantages and disadvantages of each state having its own voting rules?

Which leader was the first african american president at two different institutions for higher learning

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

Canada economy usa test prep i am stupid i don’t get it