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.
[[1, 8, 25, 45], [21, -1, -29, 28], [-25, -30], [28, 1, -31, 0, -25], [-38, 37, 31], [-44, -38, -37], [50, 16, 18, 2, 12], [2, -39, 13, 34, 21]]