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.
[[50, -2], [-37, -7, 21, -38, -29], [41, 37], [-5, 15], [38, 44, -32, -21], [-12, 27, -32], [-12, 1, 47, -46], [50, 7, 28, 16, 13]]