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.
[[14, 42, -14, 13, 14], [-12, -7, 39], [-13, -37, -46], [-22, -7, 43, 7]]