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  1. mathemalia

    Water quality levels

    Hey there, are we supposed to know the levels that make water of high quality or bad quality. Like for pH, healthy water is 6-8, and dead water is <1. Are we supposed to know all these levels for hardness, salinity etc thanks
  2. mathemalia

    Out of 100, what do you think you'll get?!

    Early 90s I'm hoping for...~ 500 got Band 6 last year out of like 4700 people
  3. mathemalia

    Which to drop...

    Hello all, right now i am in my preliminary course studying 2U Advanced Maths, 2U advanced English, Physics, Chemistry, DNT and IPT. My school cannot provide 4U maths for year 12, and i am lover of maths...but luck is not on my side...esepcially when i hear 4U maths scales you up... i will...
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