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.
[[49, -46], [41, -31, -8, 26, -18], [10, 12], [21, 41, 7, 17, 37], [-49, -40, -23], [37, 25, 37, 39, -9], [38, -26], [17, -49, 29]]