Show work, please.

9. What was the interest rate on a $1750 loan, if the amount required to pay off the loan after five months was $1828.02? 1 15. A $7760 investment earning 6% matured at $8083.33. What was the term (in months) of the investment? 4 17. Judith received the proceeds from an inheritance on March 25. She wants to set aside enough on March 26 so that she will have $20,000 available on October 1 to purchase a car when the new models are introduced. If the current interest rate on 181- to 270- day term deposits is 3.75%, what amount should she place in the term deposit