Beth has 3,000 feet of fencing available to enclose a rectangular field. one side of the field lies along a river, so only three sides require fencing.(a) express the area a of the rectangle as a function of x, where x is the length of the side parallel to the river.

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.