A bag contains 1 green, 4 red, and 5 yellow balls. Two balls, are selected at random. Find the probability of each selection. Express your answers as a percent. Show your work for credit. 20. P (2 red) 21. P (I red and 1 yellow) 22. P (I green and 1 yellow) 23. P (2 green) 24. P (2 yellow and I red)