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21 December, 06:58

F (x) = 2.5x-10.5. substitute 2 for x

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Answers (2)
  1. 21 December, 07:02
    0
    2.5*2 = 5

    5 - 10.5 = - 5.5

    Your answer is - 5.5
  2. 21 December, 07:06
    0
    Dur

    f (2) = 2.5 (2) - 10.5

    f (2) = 5-10.5

    f (2) = - 5.5
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