answer this questions in details

1) Find the probability of selecting a black card or a 6 from a deck of 52 cards. 2) What is the probability of getting a 2 g a 5 when a die is rolled? 3) A bag contains 4 blue, 2 red and 3 black pens. If a pen is drawn at random from the bag, replaced and the process repeated 2 more times, what is the probability of drawing 2 blue pens and 1 black pen? 4) A bag contains 4 blue, 2 red and 3 black pens. If 2 pens are drawn at random from the pack, M replaced and then another pen is drawn. What is the probability of drawing 2 blue pens and 1 black pen? 5) In a class, 40% of the students' study math and science. 60% of the students1 study math. What is the probability of a student studying science given hefshe is already studying math