A companys current balance sheet shows three different types of long-term debt. One is $50,000 at the interest rate of 12%; another is $30,000 at 8%. The last one is $20,000 at 6%. What is the overall interest rate of this company? (Present your answer to the first decimal as in #. #). Please do not put %. Just put the number (for example, 1.0 for 1.0%)