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4 March, 08:13

D = (4 times 180) - (3 times 90)

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Answers (2)
  1. 4 March, 08:21
    0
    The answer (if I did it right) is 490. you would do what is in the parentheses first and then subtract the two.
  2. 4 March, 08:31
    0
    D should end up equalling 450.
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