This is a calculus question. i need . answer with steps.

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).

Can someone me with these two circle theorem questions asap?

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.