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, -46, 37, -50, 39], [19, -34, -15, 29], [-35, -35, -1, 37], [-13, -34], [5, 22, -32], [-8, 32, -50, 45], [-14, -40], [-6, 4, 7, 11], [-48, 48, 15, -39], [-4, -12]]