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, -39, 50], [-31, 3, -50], [35, 10, 8], [-16, -40], [20, 25, 18, 47, 30], [-16, 19, -12, 39]]