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.
[[2, 19, 46, 25, 40], [-49, 29, -41], [38, -47, 30], [-33, 31, -4, -30]]