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.
[[-7, -49], [7, -9, 47], [6, -44, 49, 4], [18, 10], [5, -1, -45, 22], [-4, -14, 18, -15, -35]]