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.
[[12, -12, -50, 23, 15], [25, 43, 21, -6, 24], [43, 48, 0, 10], [9, -33, 0, -7]]