matt inherited as a trust a fifteen-year annuity-immediate with annual payments. he has been told that the annuity payments earn compound interest at a level rate and that at the end of fifteen years, their accumulated value will be $37,808.39. he has further been assured that figured at this same rate of interest, the value of his inheritance was $15,077.90. the trust executor will not reveal the amount of the annual payments. determine this amount.