# Isabel purchases a T bill that earns 1.4% simple interest that will be worth $30,000 in 10

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## Question:

Isabel purchases a T bill that earns 1.4% simple interest that will be worth $30,000 in 10 years. How much did she pay for the T bill? 5 years ago, John invested $10;000 at 3.4% compounded quarterly. How much is in his account today? How long will it take $5000 to triple if it is invested at 7.5% compounded continuously?

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