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.
[[32, -18, -29, -2, -18], [-13, 46], [-10, 6, 12], [28, 24, 4, 29, 48]]