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.
[[32, -5, 33, -47], [40, -18, 21], [42, -42], [35, 5, 9, -12], [38, -9], [-50, 39]]