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.
[[49, -6, 9], [-36, -49, -37], [22, 49], [42, 34], [-26, 41, -50, 40, 5]]