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.
[[-42, 42], [-25, -26, 23], [8, 31, -50, 33, 8], [24, 38], [28, 12]]