Billy Thornton borrowed $240,000 at a rate of 7.25%, simple interest, with interest paid at the end of each month. The bank uses a 360-day year. How much interest would Billy have to pay in a 30-day month? Select the correct answer. a. $1,455.20 b. $1,447.40 c. $1,452.60 d. $1,444.80 e. $1,450.00