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, 29, -41], [-37, -19, -21], [14, -26, -24, -49, -11], [-49, -39, 26, 2, 27], [-36, -1], [-48, 4], [40, 42, -31]]