Answer:
[6, 10]
Explanation:
Let the weight of a pen be x
Then its weight can be between
8 - 2 = 6 g and 8 + 2 = 10 g
This can be shown as
8 - 2 ≤ x ≤ 8 + 2
6 ≤ x ≤ 10
x = [6, 10]
i think....
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