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.
[[48, -47, -38, -43], [-17, 12, -11], [49, -6, 0], [42, 39, -11, 40], [40, -14, -12, 18, -43]]