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, 49], [48, 9, 8, 2, -48], [33, -40], [-23, 21], [-44, -7, -33], [-46, -50, -41], [16, 31]]