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.
[[13, -10], [22, -45], [31, 28], [26, -1, 37, 39, 47], [-1, 28], [30, 48, 23], [-9, 1, -46, -18, -46]]