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.
[[-41, 68, 71, -91, -43, -133, 13], [91, -129], [-25, -72, -124, 71], [-23, -68, -89, -97, -18, 63], [-175, -7, -46, -87, -78, -94, -129], [-90, -3], [23, -80, -87, 90, 31, -150]]