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.
[[30, -31, -29, -5], [37, 31, 38], [19, 36], [25, 49, 47, -26, -2], [50, 7, 42, 45, 45], [-14, 6, -46, -5]]