Explain either President Jackson’s speech to congress OR the Indian response to President Jackson. (1 paragraph)

How would you find the measure of one interior angle

This is a 2017 topographic map of puerto rico in the united states, and i'm sorry that people there have suffered such a disaster. i want to ask, what do the yellow dots and areas represent on this graph? and the blue area and the little blue circle, and the little blue sign that looks like a signal tower, what do they stand for?

What is most often given a value of zero to describe an object’s position on a straight line? displacement reference point distance ending location