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.
[[-49, 8, 13, 45, 50], [-10, 4], [-42, -3, -10], [-28, -50, 15], [-32, 26, 10, 20, -16], [7, 40, -15, 28, 15]]