Please confirm your option. According to the guideline provided by the Ministry of Education in Chile, correct option is B) That is, with only option (2) value of k can be determined. You determined 2 different values for "k" using option (1) which is not what you are looking for. And in case of using only option (2) you determined value of "k" you are looking for.

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Q: Umm i don't have questions anymore, but but thankk youuuu for helping me :[

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