Can someone help me find two point for each one and explain in a notebook how you get it please

Write the rational number in lowest terms 99/-15

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 exponential function has an initial value of 2? f(x) = 2(3x) f(x) = 3(2x)