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.
[[15, -47, -44, 16, 36], [-9, -26, -16], [30, 9, -12, 40, -20]]