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.
[[50, 18, 45], [-47, 19], [5, -37, -5, 20, 44], [40, -29, -10], [26, 18], [-31, 6], [40, -14, -12, -25, 39]]