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.
[[37, 13, -14, -22, 15], [44, -42, -26, 22, -23], [1, 43, -40], [-18, -47], [-48, -20], [-20, 46, -28, 1], [3, -22], [36, -11], [31, 21]]