A. Simple Interest Find the simple interest for each of the following. Round to the nearest cent. 1. $12,500 at 10 % % simple interest for 280 days. 2. $8250 at 94% simple interest for 8 months. 3. A loan of $6000 at 11% simple interest made on June 8 and due August 22. 4. A promissory note for $4500 at 10.3% simple interest made on November 13 and due March 8. 5. Joan Davies signed a 140-day simple interest note for $12,500 with a bank that uses exact interest. If the rate is 10.7%, find the maturity value. 6. Chez Bazan Bakery borrowed $24,300 for a new commercial oven. The simple interest loan was repaid in 6 months at 10 % %. Find the amount of the repayment. 7. Glenda Pierce plans to borrow $14,000 for a new hot tub and deck for her home. She has decided on a term of 200 days at 10.5% simple interest. However, she has a choice of two lenders. One calculates interest using a 360-day year and the other uses a 365-day year. Find the amount of interest Pierce will save by using the lender with the 365-day year. 8. Lupe Gonzalez has $6500 in her retirement account. Find the interest rate required for the fund to grow to $7247.50 in 15 months. 9. Hilda Heinz lends $1200 to her sister Olga at a rate of 9%. Find how long it will take for her investment to earn $100 in interact (Round to the nearest day)