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Question: Given C(t) = 4.80t + 6.86 and H(t) = 1.59t + 90.31 where C(t) is the number of United State households with personal computers and H(t) is the total number of U.S. households, both in millions, at t years since 1990.

[A] Use P to estimate the percentage of household that had personal computers in 2001.
[B] Let P(t) be the percentage of United State households with personal computers at t years since 1990. Find an equation of P.

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