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: [[47, -25, -16, 29, -47], [-49, -10, -15, 35], [-29, 49, 35, -15, 40], [-29, 29, -18, -8]]

[-25624400, -257250, 29841000, -121104]