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, 14], [-13, -39, 1], [-3, -1], [-18, 8, 15], [-49, 47, -39], [-15, -29, -39]]