You have two investment opportunities. One will have an 9.0% rate of return on an investment of $600; the other will have a 11.0% rate of return on principal of $890. You would like to take advantage of the higher-yielding investment but have only $600 available. Required What is the maximum rate of interest that you would pay to borrow the $290 needed to take advantage of the higher yield? (Do not round intermediate calculations. Round your answer to 2 decimal places.) Maximum rate of interest