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.
[[3, -13, -14, 38], [35, 10, 38], [22, -15], [23, -1, 31], [4, 11, -9], [42, 10, 3], [-2, 14, 23, 1, 49], [2, 2, -2, 6, 2], [-2, 28], [18, 1]]