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find the fith term (a5) of the sequence with the first term a1=10 and for whic each succwssive term is three tenths of the previous

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    A1 = 10
    A2 = .3*10
    A3 = .3^2 * 10
    A4 = .3^3 * 10

    An = .3(n-1) * 10

    A5 = .3^4 * 10

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