Expected Values and Conditional Expectations

Calculate the questions and show steps. Details on attachment. aaaaaaaaaaaaaasadjfashdfkjlhaskldjfhakjlshdfkjhaskljdfhashdklfjhaskljdhflkjashdkfjhaskjdlhfkajshdkljhfalskjdhfkaljsdhfkjashdkfjhasdkjfaskjdhfkajsdhfjkahsdlkjfhaslkdjfhkajsldhfasljkdhfajkshdfkjlashdfkjahsdkjfhaskjdhfakjsdhfkljahdfhaskjdlhfasljkdfhajksdhfkj