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Mathematics, 03.11.2020 02:50 jwyapo4

The total number of dollars donated each year to a small charitable organization has followed the trend dt) - 21° + 107 + 20001 + 10,000,
where d is dollars and t is the number of years since 1990. The total
number of donors each year has followed the trend di) - P + 1000.
Write an expression describing the average number of dollars per donor.

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