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.
[[-30, 49, -41, -20], [36, 28, -31, 29, -38], [-39, 14, 48], [38, 41, 34], [-39, 49, 4], [-46, 39]]