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, -30, 42, 11, -46], [-43, -12, -30], [7, -41, -24, -33, -19], [17, -40, -5, -31], [-50, -8, 26, 50], [36, 44], [31, 41, -34, -21]]