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, 7, 9, 4], [-27, 25, -21, -16, 19], [-36, -18], [43, -49, -7]]