How many sides does he count ?

Factor completely. 4p^2 + 36p + 81 express the answer in the form (ap + b)^2

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).

Which type of graph would allow us to compare the median number of teeth for mammals and reptiles easily