In this task, you are given a list. This list contains many lists of integers. The list is several items written within a []. Your task is to find the maximum number among the members of each inner list. The output should be a list comprised of the maximums with the same order as the internal lists.
[[91, -19, -152, -29, -49], [47, 1, -42], [-143, 18, -85, -39, 32], [48, 88], [38, -147, -65, -97, 37, 89, 7]]