Please help asap i’ll give brainliest it's due in 30 min

Three coins are flipped. what is the probability that there will be at least two tails?

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).

What does the sign of the slope tell you about a line?