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, -24, -3, -16], [-20, 24, 20, 8], [46, 28, 14, -5], [-16, 13, -14], [-5, -20, 29], [-38, 10, 7, 15, 15], [-45, -28, -16]]