In this task you will be given a list of lists, of numbers. For every inner list, you should multiply every number in that list and put the results in your answer. The output should be a list of numbers with the same length as the number of the lists in the input list.
[[22, 21, -38, 13], [-41, 7, 7], [-40, -1], [3, 36], [-42, -1, 17]]