Suppose that an investment earns 0% in the first year but 15% in the second year. (Enter all answers to two decimal places.) What rate of interest ra compounded annually would yield the same return after two years? ra= What rate of interest rb compounded continuously would yield the same return after two years? rb= Suppose that another investment earns 5% in the first year, 10% in the second year, and 15% in the third year. What rate of interest rc compounded annually would yield the same return after three years? rc= What rate of interest rd compounded continuously would yield the same return after three years? rd=