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.
[[-42, -13, 34], [46, 26, 11, -23], [-10, -39, -32, 37, -26], [4, -22, -3, -37, 29], [-34, -13, -11], [29, -44, 25, 20, -21]]