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, 9, 10, 32, -50], [7, 38, 45, 46], [35, -13], [7, 20, 10, 12], [-30, 18, 6, 1], [-5, -10, -37, -27, 36], [-25, 2, -6], [-37, 13, 29]]