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.
[[-33, 21, 6, 31, -9], [12, -46], [-31, 29], [18, -6, 7, 30], [21, -9]]