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.
[[38, 36, -44], [-24, -3, -26, 19, -20], [-41, 47, 36], [34, -29, 48, -39, -15]]