Explain how a number line can be used to find the difference for 34-28

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).

Use the elimination method to solve the systems of equations. choose the correct ordered pair. 7x+4y=39

What three-dimensional solid have 6 rectangular faces, 2 equal bases that are not rectangles and 18 edges