Beth deposited $4,000 in a college fund earning 3.5% simple interest. what was the total interest earned at the end of 12 years? juan deposited $200 in a savings account earning 3% simple interest over 2 years, what was the total amount of interest earned after 2 years? suppose $800 is invested into an account after 5 years? account that pays 3.5% interest, compounded annually, what is the balance in the