Definition: 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.
Input: [[-14, -21, 11, -29], [-15, 23, 45], [35, -42]]

[-93786, -15525, -1470]