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.
[[21, 43, -3], [-43, 3, 44], [-6, -43, -38, 9], [-27, -45, 39, -50], [-21, -22, -5, -17]]