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, 17, 39, 42, -44], [18, 48], [-47, 47, -19, -20], [-10, 18]]