147
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Range = 89 - 78 = 11
68
In any given set, the range is the smallest number subtracted from the largest number. Ex. (10, 17, 20, 45, 68) 68 - 10 = 58 The range is 58.
In any given set, the range is the smallest number subtracted from the largest number. Ex. (10, 17, 20, 45, 68) 68 - 10 = 58 The range is 58.
The sequence is formed by subtracting 89 at the first step and then reducing this figure by 9 at each successive step. 298 - 89 = 209 209 - 80 = 129 129 - 71 = 58 58 - 62 = -4 -4 - 53 = -57........this is the next number in the series.