If a rubber ball is dropped from a height of 10 feet the function f(x)=20(0.6)* gives the height in feet of each bounce where x is the bounce number what will the height be of the 5th bounce

Captain umaima has a ship, the h.m.s. khan. the ship is two furlongs from the dread pirate nadia and her merciless band of thieves. the captain has probability 3/7 of hitting the pirate ship. the pirate only has one good eye, so she hits the captain's ship with probability 2/5. if both fire their cannons at the same time, what is the probability that the captain hits the pirate ship, but the pirate misses.