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.
[[-50, -37, -20, 29], [-8, -4, -47, 19, 18], [23, -36], [10, -21, -36], [-26, -11]]