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.
[[49, 36, 45], [-23, -10, 43, -31, 27], [-24, -37, 0, 17, -31]]