Which represents the sample space of flipping a coin two times? What would be the probability of getting 2 tails?

Anyone know? is appreciated! will mark brainliest if correct!

What is the ratio of the change in y-values to the change in x-values for this function? a) 1: 13 b) 2: 5 c) 5: 2 d) 13: 1

Find the length of the normal and the angle it makes with the positive x-axis. (see pictured below)