What is the percent of each? Please help!!

Which property is illustrated by the following statement? if hxa rgi, then rgi hxa.

Which expression will have the same sum as 3_8 + 1/4?

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).