The correct answer is A
Complete the series choosing the missing number.
110, 99, 86, ___, 54, 35.
7, 7, 21, 105, 735, ?
625, 125, 50, 30, 24, ?
2807, 1400, 697, 346, 171, 84, 41, ?
452, 369, ?, 217, 146, 79
32, 42, 62, 92, ?, 182
18, 10, 12, 21, ?, 120
166 156 136 ? 66 16
24 36 72 108 216 ?
324 972 486 1458 729 ?
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