In a histogram, if I have 0-2 does this count everything up to 2, or does this count 2?

What is the solution set of the quadratic inequality x^2-5< or equal to 0

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).

Thee blue triangle has rotated from quadrant i to quadrant iii about the origin. describe the effects of the rotation on the coordinates of the blue triangle.