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.
[[49, -28, -48, -21, -43], [-18, -30, 25, 10], [20, 7, -5, 11], [48, 8], [-45, 44]]