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.
[[19, -23], [-5, 21, 13, -26], [4, 4, -34], [17, -40], [36, 8, 29, 40]]