3. Lynne has access to a HELOC that requires only the payment of accrued interest on the first of every month. On March 1, the opening balance on her HELOC was $15,000. She took advances of $6,000 and $10,000 on March 21 and May 4 , respectively. She made additional payments of $11,000 and $15,000 on April 15 and June 17. The interest rate on her HELOC sits at prime plus 2%. On March 1, the prime rate was 3%. On April 26 , it rose by n%. Determine the total interest paid on her HELOC from March 1 to July 1