Determine the single equivalent rate of discount for the discount series 18%, 12%, and 9%. (1 - d₁) = ______ (1 - d₂) = _______ (1 - d₃) = ______ [1 - (1 - d₁)(1 - d₂)(1 - d₃)] = ______ (rounded to four decimal places) Single Equivalent Rate of Discount = ______% (rounded to two decimal places)

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