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yearsUntilDoubled


Write a function yearsUntilDoubled(amount, rate) that returns the number of years until amount is doubled when it earns the given rate of interest, compounded annually. Use a while loop. Assume that rate is a number between 0 and 1


yearsUntilDoubled(1000, 0.03) → 24
yearsUntilDoubled(1000, 0.05) → 15
yearsUntilDoubled(500, 0.07) → 11

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def yearsUntilDoubled(amount, rate):

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