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.
[[-11, -25, 28, 28], [-6, -25, -21, -48], [-49, 21, 12], [-11, -29, -9, -28, -26], [31, 5, -41, -8, -4]]