Jenitha forrest makes a 6% commission on the first $2,000 of sales she makes, and 9% on any sales over $2,000. find her total graduated commission on $7,740 in sales.

Microsoft's stock price peaked at 6118% of its ipo price more than 13 years after the ipo suppose that $10,000 invested in microsoft at its ipo price had been worth $600,000 (6000% of the ipo price) after exactly 13 years. what interest rate, compounded annually, does this represent? (round your answer to two decimal places.)