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.
[[-8, -31, 45], [7, 41, -47], [6, 21], [4, -20, -45], [-11, 12, -16, 48], [49, -45, 29, 12], [26, -16, 10]]