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, -38], [7, 37, 23, 31], [22, -15, 3, -47, -41], [-30, -19, -30], [-40, -26, -2], [-7, -12], [0, -46, -19, -5]]