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, 1], [47, 11, -38, -7, -38], [25, -28, -26, 48, 14], [25, -1, 4, 35, -39], [-23, -29], [49, -15, -20, 12], [-23, 19, 26], [8, -50], [-15, -49]]