Please help me thanks so much

Julia bought 7 hats a week later half of all her hats were destroyed in a fire. there are now only 12 hats left with how many did she start

Find the slope of the line that passes through the points (0, 0) and (-2, -3). 2/3 3/2 -3/2

(apex) on the planet kudzu, the probability that a bird is green is 0.30. the probability that the bird is green given that the bird is female is 0.30. which statement is true?