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.
[[-5, 23, 28, -2], [16, -18, -40, -15, -9], [39, -34, -1, -33, 20], [-4, -24, -42, -13, 24], [34, 8, -4]]