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.
[[29, 24, -22], [5, -36, -19], [28, 24, 34, 27], [31, 43, 20], [-22, 16], [11, 23, 42]]