= Suppose that the accumulation in an investment fund is governed by the accumulation function a(t) = 1 + 0.06t where time is measured in years from January 1, 1990. (a) Find the accumulation $200567 at the time of the last deposit if deposits of $200 are made at the end of each year for six years, the first deposit being on December 31, 1990. (Round your answer to the nearest cent.) $ (b) What effective rate of compound interest would produce the same accumulated value (on December 31, 1995) for the sequence of six $200 deposits? (Round your answer to two decimal places.) % = Suppose that the accumulation in an investment fund is governed by the accumulation function a(t) = 1 + 0.06t where time is measured in years from January 1, 1990. (a) Find the accumulation $200567 at the time of the last deposit if deposits of $200 are made at the end of each year for six years, the first deposit being on December 31, 1990. (Round your answer to the nearest cent.) $ (b) What effective rate of compound interest would produce the same accumulated value (on December 31, 1995) for the sequence of six $200 deposits? (Round your answer to two decimal places.) %