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.
[[-28, -31, -28, -9], [-4, 45], [-15, -2, -26], [40, -9, -44], [-16, -13, -49, 18], [-25, 29]]