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.
[[10, -9, 9], [-23, -37], [-12, 46, 4, -13], [38, 15], [1, 29, -7, -1], [-35, -18], [-48, -45, -19, -21, 3], [-4, 16, -19], [-28, -24, 35, -26, 32], [50, 22, -31, -13]]