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: [[15, 42, -5, 17, 29], [31, -10, -42], [-20, -40], [-11, -17], [11, 0, 1]]

[-1552950, 13020, 800, 187, 0]