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.
[[-26, -1, -33, -47, 33], [40, 42, -29], [-8, 21, 21, 34], [45, 31], [34, -13, 28, -23, -18]]