To save money for a sabbatical to earn a master's degree, Henry deposits $1400 at the end of each year in an annuity that pays 6.1% nt compounded annually. Use the formula for the value of an annuity, shown to the right. a. How much will he have saved at the end of three years? A= b. Find the interest. a. How much money will be in the annuity three years later? (Do not round until the final answer. Then round to the nearest dollar as needed.) b. How much interest will the annuity have gained? s (Do not round until the final answer. Then round to the nearest dollar as needed.)