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OpenStudy (anonymous):
Jacob invested $300 in a savings account and earned $81 in interest at the end of 9 years. What was the interest rate
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OpenStudy (anonymous):
1529
OpenStudy (hanner_b_nanner):
$81/9= $9 per year. Make a proportion... 9/300=x/100 9x100=900/300=3 3% interest rate! :))
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