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What is the probability of getting either a spade or a queen when drawing a single card from a deck of 52 cards? Calculate the temperature when 9.60 g of oxygen gas at 1.40 atm pressure occupies a vol of 11.2 L r = 0.0821 l*atm/(k*mol). (ideal gas law)? How do you foil √(2x-7) and √(2x-7)? How many possible arrangements can be made from the letters IGUFRE? How do you find the vertex and equation given Directrix x = 2 and Focus (6,8)?