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.
[[23, -17, -25, 41], [-12, 33, -11, 31], [-45, 19], [-13, -2, -29, 33, -48], [-37, 46, -44, -36], [36, -6, -16], [15, -40]]