In Exercises 3234, use the formula for future value with simple interest to find the missing quantity. Round dollar amounts to the nearest cent and rates to the nearest tenth of a percent. 32. A = ?, P = $12,000, r = 8.2%, t = 9 months 33. A = $5750, P = $5000, r = ?,t = 2 years 34. A = $16,000, P = ?, r = 6.5%, 1 = 3 years 35. You plan to buy a $12,000 sailboat in four years. How much should you invest now, at 7.3% simple interest, to have enough for the boat in four years? (Round up to the nearest cent.) 36. You borrow $1500 from a friend and promise to pay back $1800 in six months. What simple interest rate will you pay