I'm having the hardest time with this probability problem

The amount of time an airplane departs late has an exponential distribution with mean 14 minutes. (a) Find the probability that a given airplane departs more than 32 minutes late to three decimal places: C] . (b) Find the probability that a given airplane departs less than 5 minutes late to three decimal places: C] . (c) Find the median length of time that an airplane departs late to one decimal place: D) minutes