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  1. The count in a bacteria culture was 400 after 15 minutes and 1400 after 30 minutes. What was the initial siz?
    Find the doubling period in minutes
    Find the population after 115 minutes
    When (in minutes) will thle population reach 15000?
    4 hours ago – 4 days left to answer.

  2. How long after you ovulate do you have to wait to take a pregnancy test?