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.
[[21, 13, -31], [-22, -4, 22], [-20, -21, 2, 44, -48], [-33, 22], [-4, 36, -7, 30, 17], [-10, -25, -35, 9, -6], [-44, 26, 32, -42], [-47, 38]]