
1. If you take out a loan that costs $106.40 over four years at an interest rate of 4%, how much was the loan for? 2. How much interest is earned on a principal of $371 invested at an interest rate of 7% for four years? 3. How much interest is earned on $104 at 5% for three years? 4. How much principal must be invested to earn $28.32 in two years at an interest rate of 3%? 5. If you borrow $504 for seven years at an interest rate of 4%, how much interest will you pay? 6. How much interest is earned on $655 at 9% for six years? 7. How long must $828 be invested at a rate of 3% to earn $99.36 in interest? 8. If you invest $377 at an interest rate of 10%, how much money will you have after eight years? 9. You put $420 into an investment at 3% for six years. What will the balance be at the end of six years? 10. If you put $997 into a savings account and aer six years the balance is $1,236.28, what was the interest rate? 
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