8√X ÷ 14 × 3 + 9 = 21A36B49C64D81Answer: B. 49 Read Explanation: 8√X ÷ 14 × 3 + 9 = 21 8√X ÷ 14 × 3 = 21 - 9 = 12 8√X ÷ 14 = 12/3 = 4 8√X = 4 × 14 = 56 √X = 56/8 = 7 X = 7² = 49Read more in App