ANSWERS: 1
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Now, the numbers are as follows, right: 1.5 - 5 - 10.5 - 18 Now, 5 - 1.5 = 3.5 10.5 - 5 = 5.5 18 - 10.5 = 7.5 (notice that the difference between the numbers of this sequence is increasing by 2) Then, x - 18 = 9.5 x = 27.5
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