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.
[[-23, -9, 2, 4, 29], [-50, -3, 26, 3], [-41, 44, 37, -15, 48]]