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.
[[-16, -46], [-35, 0, -29, 13], [-26, 1, -16], [18, -37, 13], [-7, 49]]