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: [[-7, -31, -15, 6], [30, -42], [13, -27, -34, 29], [45, -39, 47, -42], [-44, -43, 25, -48]]

[-19530, -1260, 346086, 3464370, -2270400]