Question

Plz help, plz show work

Answer 1

25$\pi$-13$\pi$ which equals 12$\pi$

This is because the circles have areas of 9$\pi$ and 4$\pi$ respectively. 

Plus we can tell the square has the area of 100 due to the fact that the diameters of the circles add up to 10, meaning the larger circle has a radius equal to 5 and an area of 25$\pi$. Subtract the other two from the larger one and you get your answer.