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, 18, 38, 38], [-39, 12, -15], [49, -29, -17, 42], [13, 50, 46, 50], [32, 30, 24], [10, 20], [-39, -1, 18, -29, -13]]