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.
[[18, 9], [-29, 48, -4], [5, -44], [33, -15, -45, -1], [-29, -23, -31], [-1, 42, 16], [-13, 7, 21], [-37, 40]]