posted by Jon .
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.
1.33x = 75
x = ?
the marked-up price (m), is 33% more than the publisher's price (p)
m = p + .33 p ... 75 = 1.33 p
Solve the given equation. (Round your answers to two decimal places.)
ln(x) = 4.2 + ln(7.2)