Carmen's Beauty Salon has estimated monthly finane January February March $10,500 April 4,500 May 5,500 June $10,500 11,500 6,500 Short-term financing will be utilized for the next six January February March 9% April May 13 June 16% 12 12 10 What long-term interest rate would represent a b long-term financing? (Round your monthly intere Round your interest payments to the nearest w decimal places.) Interest rate