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.
[[50, 19], [27, -50, -11, 6], [-24, 26, -2, 8, -4], [-2, 40], [-34, -38, -19], [12, 40, -42, -16, 29], [-7, -12, -31, -20, 39], [31, -43, 17], [-31, 15, -15]]