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, 25, 22, -45], [20, -30, -30], [47, -20, -34], [11, 26]]

[371250, 18000, 31960, 286]