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.
[[31, 22, 16], [-40, -26, -48], [2, -46, 15], [19, -47], [-8, -45], [-12, 27]]