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.
[[-2, 12, 5], [20, 6, -30, 34], [34, -17, -35, 42], [-30, -8]]