Really need help not good in geometry

What is the celsius temperature that is equal to 94 degrees fahrenheit using the formula f=9/5 c+32

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

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).