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: [[-5, 32, 16, -45], [4, -5, 15, -36], [4, -3, -29], [7, 1, -44]]

[115200, 10800, 348, -308]