39,42,43,44

First, decide whether each simple statement in Problems 39-42 is true or false. Then state whether the given compound statement is true or false. 39. If 5 + 10 = 16, then 15 - 10 = 3. 40. The moon is made of green cheese only if Mickey Mouse is president. 41. If 1 + 1 = 10, then the moon is made of green cheese. 42. 3 . 2 = 6 only if water runs uphill. Tell which of the statements in Problems 43-46 are true. 43. Let p: 2 + 3 = 5; 9:12-7 = 5. a. ~pv q b. ~p / ~ q C. ~ (p q) 44. Let p: 2 is prime; q: 1 is prime. a. ~p V ~ q b. ~ ( ~p ) c. (p q) V ~