In Finance, there is a term called “Fibonacci Retracement”. Stock traders often use this method which is based on Fibonacci sequence to predict the future value of a stock. Research into this topic and discuss how this recursive pattern is useful in the finance industry. Please I need help!

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Find the commission on a $590.00 sale if the commission is 15%.

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?