I need help with these questions

1. If the sample space is win, lose and p (win) = 2/5. The random variable for net (reward) winnings is X (win) = 5, X (lose) = 2, then the expected value for this event is: A. 2/5 B. 3/5 C. 4/5 D. 6/5 2. The number of ways to arrange 4 objects that are chosen from a set of 8 different objects without repetition can be calculated as: A. :P B. XC4 C. PA D. Cs 3. The following conceptual graph represents a sentence in English which is A. John is not all B. John should be tall C. John is tall D. Cannot be determined