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The people who were lined up outside the amusement park had all entered by : a.m. By :, more had entered. The number who entered each minutes increased steadily by after that. All of the people were planning to stay for the parade at noon.

  1. How many people entered between : and noon, just in time for the parade?

  2. Represent the problem as a series and write a formula for the th term.

    Write the summation representing the total number of people who entered the amusement park to see the parade between : and :.
    Write the formula for the sequence representing the number of people who entered the park during the nth quarter-hour.