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.
[[1, -21, -3], [27, 6], [38, 22, -9], [-1, 49, -47, 29], [40, -6], [-3, 44], [-10, 37]]