On January 1, a company issued 8%, 15-year bonds with a face amount of $70 million for $64.298,892 to yield 9%. Interest is paid semiannually. What was interest expense at the effective interest rate on June 30, the first interest date? (Enter your answers in whole dollars. Round percentage answers to 1 decimal place (e.g.. 0.0234 should be entered as 2.3).) Interest Expense