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.
[[-40, -36, 25], [23, -45, 49], [1, 21, 45, 42, 24], [20, -29], [46, -16], [42, 24, 4, -1, -42]]