Use the simple interest fоrmulа . Rоund аll аmоunts to 2 decimal places, if necessary. Do not include $ in your answers. Do not use commas. A savings account of is left for 5 years and draws simple interest at a rate of . a) How much interest is earned? $ b) What is the balance in the account at the end of 5 years? c) What is the balance in the account at the end of 20 years?