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.
[[-41, -16, 50, -47], [-15, 26, -39, -43, 20], [22, 9, -3, -33, -21]]