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.
[[31, -5, 0], [0, -20], [-25, 22, 17, 47], [-10, -12, -31, 25], [1, 6, 11], [-34, 16, -47, -24, 6], [-23, -22, 23, 50]]