Definition: 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.
Input: [[39, 32, 48, 10, -20], [28, 5, -44], [5, 35, -35, 3, 39]]

[-11980800, -6160, -716625]