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, -30, 2, 18], [44, 28, -46, -24], [13, -3, -9, 0, 37], [20, 22], [35, -3, -35], [49, 3], [38, 9]]