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.
[[37, 6, 12, 29], [5, 8, -35], [10, 8, 32, 43, 19], [-10, -20, -28], [12, 40, -26, -18, -27], [42, 31, -45]]