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.
[[-14, -50, 9], [-19, -26, -26, 29, -48], [12, -42, 32, 19, 18], [-21, 48, -36]]