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.
[[-6, 27, -23, -19, 1], [29, 14], [-6, -31, 7, 46, -18], [-31, -26, -8, 23, 30]]