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: [[9, 42, 0, -4], [15, 50, -35, 19, -34], [-40, -30, -39], [-39, 24], [33, 28]]

[0, 16957500, -46800, -936, 924]