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.
[[6, 28, 46, -28], [-33, 24], [-29, 44, -29], [-7, 44, 15, 22, 22]]