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.
[[26, 19, 49, -11], [-5, -25], [-19, 35, -31, -17], [-40, -6, -35, -8, -26]]