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.
[[-16, 11, -21, -11], [-17, 2, 17], [-26, 39], [34, 40], [8, 41, 23], [-12, -19, 21, 15, -5], [30, -41, 45, 49]]