The encomienda system was seen as a true trusteeship among the
population, as opposed to the repartimiento system which was seen as
abusive, and was thought to promote unethical behavior.
The Seminoles were a Native American tribe in Florida, they consisted of other tribes kicked out of their land. They launched raids on settlers in northern Florida and Southern Georgia, so I'm pretty sure if you are being raided by a group of people you want them gone.
A special one-year tax to help pay for building new schools would serve as an example of how local taxes support the economy. Public school funding is usually based on local taxes and therefore, this example is most likely exemplary of this.