21. Compound Growth. In September 2007 a pound of apples cost $1.18, while oranges cost $1.50. Ten years earlier the price of apples was only $.93 a pound and that of oranges was $.96 a pound. What was the annual compound rate of growth in the price of the two fruits? If the same rates of growth persist in the future, what will be the price of apples in 2027? What about the price of oranges? (L06)