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.
[[-4, 3, 26, 36], [44, 50, 14, -34, -23], [-17, 25, 8, -20, -42]]