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: [[20, 31, 10, 5, -21], [-44, 32, -5], [5, 19, 25, 49], [-28, -49, -25], [40, -7], [27, 0, -25, 42]]

[-651000, 7040, 116375, -34300, -280, 0]