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.
[[45, 37, 29, 50], [14, 18, 30, -50, -14], [-20, 11, 8], [24, -45, 48, -49, -20], [-7, -27, -28]]