Seudónimo Seudónimo 18-01-2017 Mathematics contestada A, 25 + 7b x 9b - 83 B, 10 x 7b - 9b x 83 C, 25 x 7b - 9b + 83 D, 10 + 7b + 9b divided by 83 5 to the second power x 7b - 9b + 83 = ?