7, 4, 5, 9, ?, 52.5, 160.5
Answer & ExplanationOption: [C]
The missing term is 20
7 x 0.5 + 0.5 = 4
4 x 1 + 1 = 5
5 x 1.5 + 1.5 = 9
9 x 2 + 2 = 20
20 x 2.5 + 2.5 = 52.5
52.5 x 3 + 3 = 160.5
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