# Intermediate Algebra

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Suppose a college bookstore buys a textbook from a publishing company and then marks up the price they paid for the book 33% and sells it to a student at the marked-up price. If the student pays \$75.00 for the textbook, what did the bookstore pay for it? Round your answer to the nearest cent.

• Intermediate Algebra -

1.33x = 75

x = ?

• Intermediate Algebra -

the marked-up price (m), is 33% more than the publisher's price (p)

m = p + .33 p ... 75 = 1.33 p

• Intermediate Algebra -

(a)
ln(x) = 4.2 + ln(7.2)

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