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.
[[-15, -42, -41, 33, 44], [36, 6, 28, -36, 41], [-32, 11, -48], [31, -26, -49]]