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.
[[50, 12, 13, -50, 12], [39, -36, 8, 20], [-34, 32], [40, 42, 39, 27, 9], [-2, 1, -10]]