Ineed on this one
a credit card offers no interest financing if the entire balance is paid in full within 12 months . if the balance is not paid in full at the end of 12 months, the customer is charged 18% interest on the original balance. what will be the amount of interest charged on a $500 purchase that is not paid in full at the end of 12 month period? (18%=0.18 use the formula i= prt