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.
[[8, -36], [-39, 46, -43, -47], [50, 28, -9], [-25, -39, -39, 16, 29]]