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.
[[-30, 27], [27, -36, 18, -10, 1], [-37, -31], [19, 46, -47], [17, 15, -21, 40, 3]]