What goes up but never ever comes down

What is a rational number between 9.5 and 9.7

Given right triangle xyz, which correctly describes the locations of the sides in relation to

If you flip a coin 3 times, what is the probability of flipping heads 3 times? a. p(3 heads) = 3/8 b. p(3 heads) = 1/6 c. p(3 heads) = 1/8 d. p(3 heads) = 1/2