Definition: 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.
Input: [[13, -42, 40, 42], [21, -4], [-24, 33, 8], [-4, -34, -9], [-39, 31, -48, 18, -20], [1, 12, 47], [6, 14]]

[-917280, -84, -6336, -1224, -20891520, 564, 84]