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.
[[0, -49], [-14, -18, 50], [-9, -45, -19], [5, 30, -41], [-48, -2, 13]]