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.
[[39, -29, 19, -12], [38, -30], [-20, 35], [44, -6, -49], [-23, 4, -46, -44, 0], [2, -15, 20, 8]]