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, 1, 2], [47, 4, -30, 2, 15], [29, -46], [42, -10, -20, -9, 9], [1, -11, -20], [11, -25], [3, -16, -46, -14, 21], [10, -18]]

[80, -169200, -1334, -680400, 220, -275, -649152, -180]