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you have agreed to loan $450 to a friend at a simple interest rate of 140%. you tell him to pay you back 500$ in a few weeks. How many weeks to keep a 140% interest rate?

User Fifix
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What would be the interest cost(simple interest) for a $3000 loans with a 8% rate for nine months of a years? [Simple interest= PrincipalRateTime.
User MastaH
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