Answer:
self-interest and competition work together to regulate the market place.Self-interest spurs consumers topurchase certain goods and services and firms to produce them.
The system of money in America between 1776 and 1789 was a hodgepodge.
It consisted of British, French, Continental, and Spanish currencies,
and base metals or gold and silver. After Spain entered the war on the
side of the United States, the standard currency became the Spanish
dollar. Still, other currencies were accepted. After the war ended, The
United States went on a gold standard and the government stopped issuing
paper currency, but individual banks issued paper currency.
The primary function of a school board is to help make the best decisions for the school and for the staff and students in the school. without a school board in a school that school would be in trouble.
Depends on where you're going, it's theoretically and scientifically possible to travel to the future because it's going to happen, but much more complicated and nearly impossible to travel to the past, because it already, well, happened. But time travel is nearly impossible in any frame with today's technology, and from a scientific standpoint, may never EVER happen because of the immense power and technology that may be needed for it. So short answer, scientifically possible? In a way? Yes. Has anyone done it yet? Will anyone ever do it? Most likely, no. Sorry if that makes you sad haha, we are creatures trapped in present time, and here we stay. Maybe for good reason too. But research and explore yourself, you never know, but if you ask me, we should stay here, we shouldn't mess anything else up as a species if you ask me. Food for thought.
Hope this helps :)