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: [[40, 50, -3, -37, 6], [-15, 15], [23, -20, 5, 25], [16, 13, 44]]

[1332000, -225, -57500, 9152]