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.
[[39, -36, 25, -17, 11], [50, -5, 28], [-29, -50, 2], [-19, 48]]