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.
[[-10, -5, -4, -27], [-33, 24, -36, -47, -31], [-38, -32, -30, 47]]