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: [[48, 7], [9, 48, -2, 0, -47], [45, -7, 30, -50]]

[336, 0, 472500]