23. The Square Wheel Bicycle store has found that they sell most of their bikes in the spring and early sum- mer. On February 15, they borrowed $351,500 to buy bicycles. They are confident that they can sell most of these bikes by September 1. Their loan is at 5% simple interest. What size lump sum payment would they have to make on September 1 to pay off the loan? 29. You are annuity payment future 30. Find and Exercise 31. Find the