Debra has to decide on paint colors for her house. There is a 90% chance she will choose gray for the living room. There is a 70% chance she will choose blue for her bedroom and there is a 75 % chance she will choose yellow for the kitchen. There is a 62% chance she has both gray and yellow in her house and a 73% chance she has both blue and yellow in her house. What is the probability she chooses gray for the living room given that her kitchen is yellow?