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: [[-28, 29, 50], [12, -11, -48], [48, -40, 41, 34, 5]]

[-40600, 6336, -13382400]