The projected year end assets in a collection of trust funds in trillions of dollars where t represents the number of years since 2000 can be approximated by the following function where Osts 50 A t 0 00003291 0 006101 0 0514t 1 89 a Where is A t increasing b Where is A t decreasing SCICO a Identify the open intervals for 0 st 50 where A t is increasing Select the correct choice below and if necessary fill in the answer box to complete your choice OA The function is increasing on the interval s Type your answer in interval notation Round to the nearest tenth as needed Use a comma to separate answers as needed OB There are no intervals where the function is increasing b Identify the open intervals for 0sts 50 where A t is decreasing Select the correct choice below and if necessary fill in the answer box to complete your choice OA The function is decreasing on the interval s Type your answer in interval notation Round to the nearest tenth as needed Use a comma to separate answers as needed