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.
[[-4, 39], [24, 6, -19, 9, 50], [34, -24], [3, -45, -17, 15], [-25, -42, -26, -5, 42]]