5plates and 4 cups cost 21.20 dollars. 6 plates and 5 cups cost 25.70 dollars. each plate costs the same amount as the other plates, each cup costs the same amount as the other cups. what is the cost of one plate? what is the cost of one cup?

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.