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.
[[-4, 33, 20], [-33, -8, -50, -45], [-7, -13], [-29, 46, 14, -49], [-42, 33, 16, -20], [9, 35, 42, 14, 16], [-31, 19]]