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? (A) x = A, y = B (B) x = B, y = C (C) x = C, y = D (D) x = D, y = E (E) x = E, y = F 152. What is the average of the numbers (A) (B) (C) (D) (E) 153. If 3(m + n) is even, then which of the following must also be even? (A) m + n (B) m (C) n (D) 3m (E) 3n + 1 154. A number is a multiple of both 4 and 9. Which of the following is NOT a possible value of the number? (A) −540 (B) −324