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.
[[-27, 8, -7, 8], [-42, -11, 18, -17], [43, 40, 49, 9, -43], [-7, -31, -40, 38, 4], [-47, 9, -15, 44]]