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.
[[4, 28], [39, 45, 15, 8], [33, -40], [-22, -43, 47], [-10, -37], [-13, 14], [13, -37, 47], [32, 15, -50], [13, 16, -16, -7]]